CN102354168B - Electro-hydraulic control system of high/ low temperature test stand of automobile automation transmission valve body - Google Patents

Electro-hydraulic control system of high/ low temperature test stand of automobile automation transmission valve body Download PDF

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Publication number
CN102354168B
CN102354168B CN2011101772640A CN201110177264A CN102354168B CN 102354168 B CN102354168 B CN 102354168B CN 2011101772640 A CN2011101772640 A CN 2011101772640A CN 201110177264 A CN201110177264 A CN 201110177264A CN 102354168 B CN102354168 B CN 102354168B
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low temperature
temperature
oil
valve
high temperature
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CN102354168A (en
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文红举
斯红路
陈国利
莫凡
银联作
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Chongqing Qingshan Industry Co Ltd
Chongqing Tsingshan Industrial Co Ltd
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Chongqing Qingshan Industry Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract

The invention discloses an electro-hydraulic control system of a high/low temperature test stand of an automobile automation transmission valve body. The system comprises: an electric control system and a high/low-temperature hydraulic system. The electric control system comprises: an upper computer, a lower computer, an input/output module and a transmission control unit (TCU) controller. The input/output module and the TCU controller are connected with the lower computer as a dual redundant control mode. The valve body to be detected is directly controlled by a dual redundant control system. The high/low-temperature hydraulic system comprises an independently controlled high-temperature hydraulic circuit and a low-temperature hydraulic circuit, a high/low-temperature shared circuit which is connected with the high-temperature hydraulic circuit and the low-temperature hydraulic circuit and a detected hydraulic system which is connected with the high/low-temperature shared circuit. The detected valve body is arranged in the detected hydraulic system. In the invention, hierarchical control formed by the upper computer, a lower real-time controller and real-time interface control are adopted; through a CAN communication and signal interface module and a dual redundant valve plate control scheme which is connected with the TCU, a requirement of high speed data acquisition and test in the valve body test under the condition of the high/low temperature and operation parameter simulation can be satisfied.

Description

A kind of electrohydraulic control system of high/low temperature test stand of automobile automation transmission valve body
Technical field
The present invention relates to the control system of component test stand, be specifically related to a kind of electrohydraulic control system of high/low temperature test stand of automobile automation transmission valve body.
Background technology
Core key part-valve body as automatic transmission, the realization of whole vehicle functions and the raising of performance are played vital effect, it not only affects rideability and the driver comfort of car load, and to significant impact is arranged in efficient, reliability and serviceable life of car load.Therefore, extremely important to the test that function and the performance of valve body are carried out system, its test findings is not only the foundation of improving valve body and solenoid valve design, is also the important foundation that automatic transmission is controlled software development.
It is larger that the valve body performance is affected by oil temperature, the automatic transmission valve operating temperature range is wider, therefore need to carry out performance test to valve body at different temperature, but this is corresponding complexity and the cost that has increased system also, therefore conventional valve body performance test stand has usually been simplified pilot system, can only carry out conventional experiment to the valve body performance at normal temperature or not too high temperature.
The control performance of the dynamic response product confrontation car load of valve body has material impact, therefore in the performance test of valve body, need to be when pilot system be controlled, to correlation parameter carry out high frequency data acquisition, data and curve are shown in real time, conventional industrial computer system based on WINDOWS can not satisfy the needs of control in real time and high speed and real time sampling simultaneously, and the test capability of valve body testing table is restricted.
In the process of the test of valve body, also need valve body and control assembly are tested, the call parameter and the signal that move by analog controller, controller is controlled and parameter acquisition valve body in the parameter environment of simulation, with the dynamic response performance of research valve body in the setting situation, and existing testing table is mainly considered the test of valve body, has ignored the performance test demand of valve body under the parameter simulation condition that contains controller.
authorized in patent of invention ZL200410020321.4 " test bench for automatic gear box control valve of automobile " and utility model patent ZL200420029540.4 " test bench for automatic gear box control valve of automobile " and introduced a kind of test bench for automatic gear box control valve of automobile, patent documentation shows, this testing table can not provide high low temperature oil pressure, the input flow rate of pilot valve body can not be regulated, adopt the pressure simulation oil circuit of air throttle and the ratio pressure simulation oil circuit of the speed of a motor vehicle to carry out the gearshift control of valve body on function, it is a kind of easy mechanical hydraulic servo system, existing Transmission System has adopted complete automatically controlled sensor and electrohydraulic servo system, therefore this testing table does not possess the ability of under high low temperature, existing conventional automatic speed transmission electrohydraulic servo-drive system being carried out experimental test.this system has adopted duplex gear pump, one of them pump is that movable workbench hydraulic cylinder in the pilot valve body assembling and dissembling process, compression die head hydraulic cylinder produce working pressure, and produced by reduction valve the main oil pressure that valve body is tested, but the reduction valve of this oil circuit can only be realized the Decompression Controlling of pressure, can not realize the adjusting to the pilot valve body test flow, another pump passing ratio pressure regulator valve of system has produced the speed governing oil pressure, but in the hydrostatic control valve body of general full electronic automatic transmission, Shifting generally is based on two parameters of throttle and the speed of a motor vehicle and controls, throttle signal and vehicle speed signal are sensor and gather by gearbox controller TCU, TCU carries out corresponding gearshift according to selected control strategy and controls, the throttle signal of this patent is applied to by the throttle valve drive motor and produces the air throttle oil pressure on operation valve, vehicle speed signal produces corresponding speed governing oil pressure by aforesaid ratio adjusting valve, the speed of a motor vehicle and throttle signal are not the automatically controlled systems of sensor, connect and be applied on shift valve but convert air throttle oil pressure and governor oil straightening to, therefore shift control rule can only be realized by the mode of full mechanical-hydraulic, also find this system temperature control method and imperfect by reading independent right, appurtenance and Fig. 4, this system only adds heat control by control heater, in conjunction with patent specification, the test oil temperature is controlled at 55 ± 5oC, and the performance of hydraulic system is very responsive to the oil temperature parameter, the routine work temperature of heat engine state can reach 90 ~ 120 oC, and the extreme working temperature of cold post-start state can be lower than-35 oC.
authorized the scheme that has adopted the communication of Industrial Control Computer band and signaling interface in patent of invention ZL200410020321.4 " test bench for automatic gear box control valve of automobile " and utility model patent ZL200420029540.4 " test bench for automatic gear box control valve of automobile " aspect control system, due to the multiple task operating system that has adopted under the WINDOWS system, system real time is poor, can not satisfy simultaneously the demand of control in real time and high-speed data acquisition, due to the valve plate that is the mechanical hydraulic servo system, do not consider the test demand with the TCU controller yet, therefore when requiring in wider temperature range, the test temperature of valve body testing table is controlled accurately and pressure and other parameters is carried out real-time collection, requirement under the analog parameter condition to conditions such as the valve body with TCU make a service test under, need control system is carried out Real-time Design, operational factor environment to TCU carries out signal imitation, to satisfy simultaneously the needs of real-time control and high-speed real data acquisition and monitoring.
authorized in utility model patent ZL 200820190245.5 " automatic gear box controlled valve body experimental rack " and introduced a kind of test bench for automatic gear box control valve of automobile, find out that from patent documentation this valve body testing table does not have the function of valve body performance test under high low temperature fully, only have simultaneously gearshift to control and the simulation of the engine speed of a motor vehicle, lack clutch, the controls such as locking, can not meet the needs of the full electro-hydraulic control valve body test of modern automatic transmission: this testing table is with the first variable-frequency motor simulated engine rotating speed and drive oil pump, with the second variable-frequency motor simulation speed of a motor vehicle, and convert signals of rotational speed sensor to square-wave signal control two gearshift solenoid valves, this patent does not relate to the hydraulic system of valve body pilot system fully, do not relate to the control of oil temperature yet, the another two motor speed sensor signal driver gearshift solenoid valves that adopt, only has the engine speed simulation, there is no simulated engine throttle opening signal, do not consider the transmission clutch solenoid control fully, and (except other electric-controlled hydraulics AMT of CVT, the gearshift of the automatic transmission such as DCT, AT are controlled all more than two valves) controlled in the gearshift of only having two solenoid valves, except the gearshift operation valve, also should consider the solenoid control of start clutch, converter lockout clutch coupling, shifting quality etc. simultaneously.This testing table patent does not relate to electric-control system fully.
in sum, existing valve body testing table all lacks function and the corresponding control device of valve body performance test under high/low temperature condition, the real time high-speed data acquisition and control of shortage to test system, shortage is in the valve body performance test of giving under TCU controller setup parameter dry run environment, for automatic transmission valve being carried out real time high-speed data acquisition and the performance test in full working temperature zone, be necessary to design corresponding valve body high temperature performance testing table electrohydraulic control system, to satisfy under automatic transmission valve thermocycling condition and analog operational parameters condition high-speed data acquisition and the Control experiment demand to pressure flow.
Summary of the invention
The object of the present invention is to provide a kind of electrohydraulic control system of high/low temperature test stand of automobile automation transmission valve body, it can satisfy under the full working temperature of automatic transmission valve zone and the collection of high-speed data and the needs that test detects under the analog operational parameters condition.
The technical scheme that the present invention adopts for achieving the above object is:
A kind of electrohydraulic control system of automatic transmission valve thermocycling platform comprises electric control system and high-low temperature hydraulic system, it is characterized in that:
(1) electric control system comprises host computer, slave computer, input/output module and TCU controller, connect by netting twine between host computer and slave computer and control, the input and output mould is connected the dual redundant control mode and is connected with slave computer with the TCU controller, tested valve body directly is subjected to the control of this dual redundant control system, also comprises the warning device that is connected with input/output module; Described host computer comprises mouse, keyboard, main frame, display; Described slave computer comprises cabinet, AO1 simulation output, real-time processor, A/D analog to digital conversion, internal storage location, CAN communication module, AO2 simulation output, DIO digital IO;
(2) high-low temperature hydraulic system comprises that the independent high temperature hydraulic circuit of controlling is connected the shared oil circuit of high low temperature that is connected with the low temperature hydraulic oil road with the high temperature hydraulic circuit with low temperature force feed road, share with high low temperature the test solution pressing system that oil circuit is connected, tested valve body is located in the test solution pressing system; The high-low temperature hydraulic system control signal is connected with slave computer through input/output module.
High-temperature pump servomotor controller, cryopump servomotor controller, high temperature proportional solenoid valve control device, low temperature proportional solenoid valve control device, intelligent triac controller, resistor-type temperature signal regulation module, flow displaying instrument, PWM modulator and power amplifier that the electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, its described input/output module comprise terminal box, are connected with terminal box.
The electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, its described high temperature hydraulic circuit comprise that an end enters the high temperature flowline through high temperature fuel tank, oil-feed stop valve, oil absorption filter, high temperature gear pump, high temperature hydraulic pressure fine filter, high temperature hydropneumatic ball valve; One end is through high temperature flowline, high temperature hydropneumatic ball valve, and through high temperature proportion magnetic valve and high temperature deadweight safety valve, gets back to the high temperature fuel tank by the high temperature oil returning tube.be connected with the high temperature fuel outlet ball valve with the high temperature fuel tank, be located at high temperature fuel tank heater and cooling down device in the high temperature fuel tank, the high-temperature water cooling solenoid valve and the cooling water filter that are connected with the cooling down device, one end stretches into high temperature fuel tank temperature sensor, high-temperature systems level switch, high temperature tank gauge, high temperature fuel tank air cleaner and the high temperature oil box mixer in the high temperature fuel tank, the high temperature oil circuit motor coupler and the high-temperature pump servomotor that also comprise the high-temperature pipe tensimeter that is located on the high temperature flowline, be connected with high temperature gear pump, high-temperature pump servomotor and high-temperature pump encoder for servo motor are connected with high-temperature pump servomotor controller in input/output module, the high temperature proportion magnetic valve is connected with high temperature proportional solenoid valve control device in input/output module, the high temperature fuel tank heater is connected with intelligent triac controller in input/output module, high temperature fuel tank temperature sensor is connected with resistor-type temperature signal regulation module in input/output module and is connected with the TCU controller simultaneously, the heater surfaces temperature sensor is connected with terminal box in input/output module, the high-temperature systems level switch is connected with terminal box in input/output module.
The electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, its described low temperature hydraulic oil road comprises that an end enters the low temperature flowline through low temperature fuel tank, low temperature fuel sucking pipe, low temperature gear-type pump, warm hydraulic pressure fine filter, low temperature hydropneumatic ball valve, and an end is through low temperature flowline, low temperature hydropneumatic ball valve and get back to the low temperature fuel tank through low temperature proportion magnetic valve, low temperature deadweight safety valve by the low temperature oil returning tube.The low temperature fuel outlet ball valve that is connected with the low temperature fuel tank, one end stretches into low temperature fuel tank temperature sensor, cryogenic system level switch, low temperature fuel tank air cleaner, low temperature tank gauge and the low temperature fuel tank stirrer in the low temperature fuel tank, the low temperature oil circuit motor coupler and the cryopump servomotor that also comprise the cryogenic piping tensimeter that is located on the low temperature flowline, be connected with the low temperature gear-type pump; Cryopump servomotor and cryopump encoder for servo motor are connected with cryopump servomotor controller in input/output module, the low temperature proportion magnetic valve is connected with low temperature proportional solenoid valve control device in input/output module, low temperature fuel tank temperature sensor is connected with resistor-type temperature signal regulation module in input/output module and is connected with controller TCU simultaneously, and the cryogenic system level switch is connected with terminal box in input/output module.
The electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, its described high low temperature shares oil circuit and comprises the main inflow pipeline that is connected with the low temperature flowline by tee pipe fitting and high temperature flowline, the working connection flow speed control valve that is connected with main inflow pipeline, the four-way pipe fitting that first end is connected with the working connection flow speed control valve; The accumulation of energy oil line pipe and accumulator stop valve and the accumulator that are connected with four-way pipe fitting the second end; The tested valve body inflow pipeline that is connected with four-way pipe fitting the 3rd end and establish thereon inflow pipeline flowmeter, inflow pipeline tensimeter, inflow pipeline temperature sensor, inflow pipeline pressure transducer and hydraulic quick coupler; The bypass flow that is connected with four-way pipe fitting the 4th end is regulated pipeline, and bypass flow is regulated pipeline through establishing thereon bypass ball valve, bypass from flow speed control valve, and oil returning tube flowmeter, hydraulic quick coupler and oil returning tube pressure transducer are connected with tested valve body oil returning tube; Be located at bypass flow regulate on pipeline bypass from an end of the four-way pipe fitting between flow speed control valve and oil returning tube flowmeter by the valve body high temperature oil circuit oil returning tube that is provided with high temperature oil circuit oil return solenoid valve be connected with the high temperature oil returning tube, the other end is connected with the low temperature oil returning tube by the valve body low temperature oil circuit oil returning tube that is provided with low temperature oil circuit oil return solenoid valve; The inflow pipeline temperature sensor is connected with resistor-type temperature signal regulation module in input/output module and is connected with controller TCU simultaneously, the inflow pipeline flowmeter is connected with the oil returning tube flowmeter with flow displaying instrument in input/output module and is connected, and the inflow pipeline pressure transducer is connected with the oil returning tube pressure transducer with terminal box in input/output module and is connected.
the electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, its described test solution pressing system comprise with high low temperature share in oil circuit tested valve body inflow pipeline be connected the tested valve body that the valve body oil returning tube is connected, the strange clutch coupling that docks with tested valve body oil circuit by hydraulic quick coupler respectively, even clutch coupling, the clutch lubrication oil circuit, axle is lubricant passage way, be located at respectively the pressure transducer on each oil circuit: strange clutch pressure sensor, even clutch pressure sensor, strange clutch lubrication pressure sensor, even clutch lubrication pressure sensor, axle is the lubrication pressure sensor, be located at respectively clutch lubrication oil circuit and axle and be the strange clutch lubrication flow meter on lubricant passage way, even clutch lubrication flow meter, axle is the lubrication flow meter, be located at the throttling valve on strange clutch lubricant passage way, throttling valve on even clutch lubricant passage way, be located at axle and be fluid refrigeratory on lubricant passage way and be located at respectively cooling front oil temperature sensor and cooling rear oil temperature sensor before and after the fluid refrigeratory, be oil return pallet corresponding to lubricant passage way outlet with clutch lubrication oil circuit and axle, the oil return pallet is connected with the high temperature oil returning tube by the high temperature pallet oil returning tube that is provided with high temperature pallet oil return solenoid valve, and be connected with the low temperature oil returning tube by the low temperature pallet oil returning tube that is provided with low temperature pallet oil return solenoid valve.
The electrohydraulic control system of described a kind of automatic transmission valve thermocycling platform, the low temperature fuel tank on its described low temperature hydraulic oil road is located in industrial refrigerator; And the break-make of the low temperature stirring motor auxiliary reclay by controlling industrial refrigerator motor auxiliary reclay and low temperature fuel tank stirrer, realize the control to low temperature fuel tank oil temperature.
The host computer of electric control system mainly is responsible for the setting of parameter and the human-computer interaction interfaces such as demonstration of curve, slave computer realizes that mainly data are processed and real-time control fast, the signal imitation of TCU operational factor and pumping plant servomotor state, test oil temperature, flow, pressure signal monitoring etc.
By the control to the servomotor rotating speed in the high and low temperature hydraulic circuit; can realize the simulation to the different input flow rates of valve body; the safety overflow valve and the proportional pressure valve that adapt to high temperature or low temperature are arranged respectively on high and low hydraulic pressure temperature oil circuit; can realize pressure setting and protection to hydraulic system under high/low temperature condition; also can realize providing a controlled input pressure to pet valve when pilot solenoid valve independently.
The high temperature hydraulic circuit is controlled by well heater and circulating cooling water route and the oily stirring system of fuel tank, and the oil temperature of high temperature fuel tank is controlled at normal temperature to the setting test temperature between the high-temperature region; The oil temperature that the low temperature hydraulic oil road is controlled the low temperature fuel tank by industrial refrigeration for refrigerator unit and fuel tank oil stirring system is controlled at normal temperature to the setting test temperature of low-temperature range.In order to ensure low temperature cold control effect, suitably strengthen the fuel tank volume, strengthen the freezing power of the assembling unit and reduce the oil pipe delivered length, and increase provision for thermal insulation at positions such as oil pipe, fuel tanks.
Share in oil circuit at high low temperature and be provided with pressure, temperature, flow sensor, in order to realize under the extreme operating conditions such as low temperature, low discharge the control to valve plate or valve input flow rate, two flow speed control valves have been adopted in working connection, one of them main flow speed control valve is connected in working connection, back at this main flow speed control valve, in parallel with the tested valve system, connect flow speed control valve No. one time by a switching ball, secondary flow speed control valve oil-out oil return case.When the closing switch ball valve, by the accumulator on main flow speed control valve and working connection, the input flow rate that can effectively control tested valve plate is constant; When opening switching ball, by controlling main flow speed control valve and secondary flow speed control valve, in conjunction with the accumulator on working connection, also can be under the test conditions such as low discharge or low temperature constant flow-controllable of given pilot valve body.
Tested valve body connects real clutch coupling, heating radiator even load, at each clutch pressure of tested valve body, lubricated, also be connected to respectively pressure, temperature, flow sensor on the output circuits such as system cools, so that the serviceability of tested valve body is detected.
Beneficial effect of the present invention: the hierarchical control of adopting host computer and the next real-time controller to consist of, control and the dual redundant valve plate control program that is connected with TCU by CAN communication and Signal interface module with the employing real-time interface, by the control to high low temperature hydraulic circuit flow, pressure and temperature, the requirement of valve body test high speed data acquisition and test under high/low temperature condition and operational factor simulated conditions has been satisfied in TCU operating parameter signal simulation and controlling; The relative existed system of technical scheme involved in the present invention, compact conformation, real-time is good, controls by redundancy and interlocking and has improved test adaptability, convenience and security.
Description of drawings
Fig. 1 is the structural representation of high/low temperature test stand of automobile automation transmission valve body;
Fig. 2 is control topology structural drawing of the present invention;
Fig. 3 is the control principle drawing of high temperature hydraulic circuit.;
Fig. 4 is high and low temperature servomotor interlocking control circuit schematic diagram.;
Fig. 5 is high temperature fuel tank heating and temperature control schematic diagram.;
Fig. 6 is the collection of tested valve volume data and control principle drawing.;
Fig. 7 is the high-low temperature hydraulic system schematic diagram;
Fig. 8 is high and low temperature hydraulic circuit interlocking control circuit schematic diagram;
In figure: 1-is switch board, and 2-is power supply box, and 3-is test cabin, 4-is valve plate, and 5-is oil mist collector, and 6-is tested valve body, 7-is tensimeter, 7a-is the high-temperature pipe tensimeter, and 7b-is the cryogenic piping tensimeter, and 7c-is the inflow pipeline tensimeter, 8-is low temperature pallet oil returning tube, 9-is low temperature oil circuit oil returning tube, and 10a-is the high temperature oil box mixer, and 10b-is low temperature fuel tank stirrer;
11-is industrial refrigerator, and 12-is the low temperature fuel tank, and 13-is the low temperature fuel sucking pipe, 14-is the low temperature gear-type pump, and 15a-is the high-temperature pump servomotor, and 15b-is the cryopump servomotor, 16a-is the high temperature proportion magnetic valve, 16b-is the low temperature proportion magnetic valve, and 17a-is the high temperature deadweight safety valve, and 17b-is the low temperature deadweight safety valve, 18-is the working connection flow speed control valve, 19-is the high temperature hydraulic power unit, and 20a-is the high temperature fuel outlet ball valve, and 20b-is the low temperature fuel outlet ball valve;
21-is the cooling down device, 22a-is the high temperature tank gauge, and 22b-is low temperature tank gauge 22b, and 23-is the high temperature fuel tank, 24-is the high temperature fuel tank heater, 25-is the oil-feed stop valve, and 26-is oil absorption filter, and 27-is high temperature gear pump, 28a-is high temperature hydraulic pressure fine filter, 28b-is low temperature hydraulic pressure fine filter, and 29a-is high temperature hydropneumatic ball valve, and 29b-is low temperature hydropneumatic ball valve;
31a-is high temperature fuel tank air cleaner, 31b-low temperature fuel tank air cleaner, 32a-is the high-temperature systems level switch, 32b-is the cryogenic system level switch, 33a-is high temperature fuel tank temperature sensor, 33b-is low temperature fuel tank temperature sensor, 33c-is the inflow pipeline temperature sensor, 33d-is cooling front oil temperature sensor, 33e-is cooling rear oil temperature sensor, 34-is the high-temperature water cooling solenoid valve, 35-is cooling water filter, 37-is the accumulator stop valve, 38-is and accumulator, 39a-is the inflow pipeline flowmeter, 39b-is the oil returning tube flowmeter, 39c-is strange clutch lubrication flow meter, 39d-is even clutch lubrication flow meter, 39e-is that axle is the lubrication flow meter,
40-is pressure transducer for gearshift cylinder piston displacement sensor 41-, 41a-inflow pipeline pressure transducer, 41b-is strange clutch pressure sensor, 41c-is even clutch pressure sensor, 41d-is strange clutch lubrication pressure sensor, 41e-is even clutch lubrication pressure sensor, 41f-is that axle is the lubrication pressure sensor, 41g-is the oil returning tube pressure transducer, 42-is the bypass ball valve, 43-is that bypass is from flow speed control valve, 44A-is high temperature pallet oil return solenoid valve, 44B-is low temperature pallet oil return solenoid valve, 44a-is high temperature oil circuit oil return solenoid valve, 44b-is low temperature oil circuit oil return solenoid valve 44b, 45-is hydraulic quick coupler, 46-is the fluid refrigeratory, 47a-is the throttling valve on strange clutch lubricant passage way, 47b-is the throttling valve on even clutch lubricant passage way, 48b-is even clutch coupling, 49-is the oil return pallet,
50a-is high temperature oil circuit motor coupler, and 50b-is low temperature oil circuit motor coupler;
60-is the high-temperature pump encoder for servo motor, 61-is the cryopump encoder for servo motor, 62-is the heater surfaces temperature sensor, 63-is high temperature oil absorption filter screen alarm switch, and 64-is high temperature pressure filter screen alarm switch, and 65-is low-temperature pressure filter screen alarm switch, 66-is high-temperature stirring motor heat relay, 67-is low temperature stirring motor electrothermal relay, and 68-is that 65-is industrial thermoacoustic refrigerator relay, and 69-is the oil mist collector motor relay;
70-is high-temperature systems chilled water filtration and warning switch, 71-is high-temperature stirring motor auxiliary reclay, 72-is low temperature stirring motor auxiliary reclay, 73-is oil mist collector motor auxiliary reclay, 74-is high-temperature pump servomotor auxiliary reclay, and 75-is cryopump servomotor auxiliary reclay, and 76-is the well heater auxiliary reclay, 77-is industrial refrigerator motor auxiliary reclay, and 79-is warning device;
80-is high temperature oil way solenoid valve normally opened relay, 81-is the high-temperature water cooling solenoid relay valve, 82-is low temperature oil circuit solenoid valve normally opened relay, 83-is bypass speed governing oil circuit ball valve relay, 84-is the normally closed interlock relay of high temperature oil way solenoid valve, 85-is the normally closed interlock relay of low temperature oil circuit solenoid valve, and 86-is the normally closed interlock relay of high-temperature pump servomotor, and 87-is the normally closed interlock relay of cryopump servomotor;
101-is high temperature servomotor contactor, and 102-is low temperature servomotor contactor, and 103-is well heater thyristor contactor;
120-is the 12V Switching Power Supply, and 121-is the 24V Switching Power Supply;
130-master's pressure-controlled solenoid valve, 131-is the lubricated solenoid valve of controlling, and 132-the first switch is controlled solenoid valve, and 133-is strange Clutch Control solenoid valve, and 134-is that second switch is controlled solenoid valve, 135-is even Clutch Control solenoid valve;
201-is the high temperature flowline, 202-is the low temperature flowline, 203-is that bypass flow is regulated pipeline, and 204-is high temperature oil circuit oil returning tube, and 205-is main inflow pipeline, 206-is tested valve body inflow pipeline, 207-is tested valve body oil returning tube, and 208-is the accumulation of energy oil line pipe, and 209-is high temperature pallet oil returning tube, 210-is the high temperature oil returning tube, and 211-is the low temperature oil returning tube;
401-is host computer, and 402-is slave computer, and 403-is input/output module, 410-is netting twine, and 411-is mouse, and 412-is keyboard, 413-is main frame, 414-is display, and 415-is cabinet, and 416-is AO2 simulation output, 417-is real-time processor, 418-is the A/D analog to digital conversion, and 419-is internal storage location, and 420-is the CAN communication module;
421-is AO2 simulation output, and 422-is the DIO digital IO, and 423-is terminal box, 424-is controller, 425-resistor-type temperature signal regulation module, 426-is flow displaying instrument, 427-is the high-temperature pump servomotor controller, 428-is that the cryopump servomotor is controlled, 429-is high temperature proportional solenoid valve control device, and 430-is low temperature proportional solenoid valve control device, and 431-is intelligent triac controller, 432-is the PWM modulator, and 433-is power amplifier;
500-is that high low temperature shares oil circuit, and 520-is the low temperature hydraulic oil road, and 510-is the high temperature hydraulic circuit, 530-test solution pressing system.
Embodiment
Below in conjunction with accompanying drawing, implementation process of the present invention is further elaborated.
Referring to Fig. 1 and a kind of automatic transmission valve thermocycling platform shown in Figure 7, comprise switch board 1, power supply box 2, be located at test cabin 3, high and low temperature proportion magnetic valve 16a, 16b, high low temperature deadweight safety valve 17a above high temperature hydraulic power unit 19,17b and working connection flow speed control valve 18, the oil mist collector 5 and the tensimeter 7(that be located at tested valve body 6 and valve plate 4 in test cabin 3, are located on the test cabin 3 of cryogenic system fuel tank comprise high-temperature pipe tensimeter 7a, cryogenic piping tensimeter 7b, inflow pipeline tensimeter 7c); Also comprise low temperature fuel tank 12 and industrial refrigerator 11, be located at the low temperature fuel tank stirrer 10b on the cryogenic system fuel tank; Low temperature fuel tank 12 is connected with high temperature hydraulic power unit 19 by the low temperature gear-type pump 14 of low temperature fuel sucking pipe 13 through being connected with cryopump servomotor 15b, and low temperature fuel tank 12 also passes through low temperature pallet oil returning tube 8 is connected with low temperature oil circuit oil returning tube and is connected with high temperature hydraulic power unit 19;
The high temperature hydraulic power unit 19 of test cabin 3 bottoms is provided with high temperature hydraulic circuit 510 and high low temperature shares oil circuit 500, and high low temperature shares oil circuit and is connected with the tested valve body 6 of test solution pressing system 530, realizes the control to high temperature hydraulic circuit part;
The side of test cabin 3 is provided with and comprises low temperature pallet oil returning tube 8, low temperature oil circuit oil returning tube 9, low temperature fuel tank stirrer 10b, industry refrigerator 11, low temperature fuel tank 12, low temperature fuel sucking pipe 13, the control to the low temperature hydraulic oil road is realized on the low temperature hydraulic oil road 520 of low temperature gear-type pump 14 and cryopump servomotor 15b;
The main control power supply of placing high and low temperature pump servomotor 15a, 15b, UPS uninterrupted power source and the probe power concentrated of power supply box 2.
This testing table can satisfy the controlled demand of temperature, pressure and flow of high-low temperature hydraulic system, can test the high temperature performance of various automatic transmission valves.
Electrohydraulic control system referring to Fig. 2 and a kind of automatic transmission valve thermocycling platform shown in Figure 7 comprises electric control system and high-low temperature hydraulic system;
(1) electric control system comprises host computer 401, slave computer 402, input/output module 403 and TCU(Transmission control Unit) controller 424, connect and control by netting twine 410 between host computer and slave computer, input/output module 403 is connected the dual redundant control system that consists of and is connected with controll plant with the TCU controller, be used for that high/low temperature test stand of automobile automation transmission valve body is carried out test flow, test temperature, test pressure and oil circuit and switch and the control that interlocks, tested valve body 6 directly is subjected to the control of this heavy redundancy control system; Also comprise the warning device 79 that is connected with input/output module 403;
Described host computer 401 comprises mouse 411, keyboard 412, main frame 413, display 414, and its effect is to realize that graphical data is processed and man-machine manipulation interface;
Described slave computer 402 comprises cabinet 415, AO1 simulation output 416, real-time processor 417, A/D analog to digital conversion 418, internal storage location 419, CAN communication module 420, AO2 simulation output 421, DIO digital IO 422, and its effect is input and output and the control that realizes the signal such as simulation, digital quantity and instruction;
(2) high-low temperature hydraulic system comprises the shared oil circuit 500 of high low temperature that the independent high temperature hydraulic circuit 510 of controlling is connected with the low temperature hydraulic oil road, is connected with the low temperature hydraulic oil road with the high temperature hydraulic circuit, share with high low temperature the test solution pressing system 530 that oil circuit is connected, tested valve body 6 is located in the test solution pressing system; High-low temperature hydraulic system is connected with slave computer 402 through input/output module 403.
High-temperature pump servomotor controller 427, cryopump servomotor controller 428, high temperature proportional solenoid valve control device 429, low temperature proportional solenoid valve control device 430, intelligent triac controller 431, resistor-type temperature signal regulation module 425, flow displaying instrument 426, PWM modulator 432 and power amplifier 433 that described input/output module 403 comprises terminal box 423, is connected with terminal box.
Input/output module 403 realizes connection and the control of signal; Wherein set the control that high-temperature pump servomotor controller 427 is realized high-temperature pump servomotor 15a according to the adjusting of the real-time processor 417 of slave computer 402; The control that cryopump servomotor controller 428 is realized cryopump servomotor 15b; High temperature proportional solenoid valve control device 429 is realized the pressure of high temperature gear pump 27 endpiece in high temperature hydraulic circuit 510 is carried out continuous regulation and control; Low temperature proportional solenoid valve control device 430 is realized the pressure of low temperature gear-type pump 14 endpiece in low temperature hydraulic oil road 520 is carried out continuous regulation and control; Intelligence triac controller 431 is realized high temperature fuel tank heater 24 is controlled.
terminal box 423 is connected with the AO1 simulation output 416 of slave computer 402, the control simulation signal of real-time controller is passed through respectively high-temperature pump servomotor controller 427, cryopump servomotor controller 428, high temperature proportional solenoid valve control device 429, low temperature proportional solenoid valve control device 430 and intelligent triac controller 431, realization is controlled the rotating speed of high-temperature pump servomotor 15a and cryopump servomotor 15b, realization is controlled the pressure of high temperature proportion magnetic valve (being used as surplus valve) 16a and low temperature proportion magnetic valve (being used as surplus valve) 16b, realization is controlled the temperature of high temperature fuel tank heater 24.
TCU controller 424 is most crucial parts of automatic transmission valve electrohydraulic control system, and the main data acquisition and control of realizing tested valve body 6 is with driving and the performance requirement that satisfies car load.TCU controller 424 is simulated output 421 by AO2, DIO digital IO 422 is connected with slave computer 402 real-time controllers with CAN communication module 420, to realize simulation and the control to the TCU operational factor, the output of the AO2 of slave computer 402 real-time controllers simulation simultaneously 421, be connected with PWM modulator 432 by terminal box 423, can be to (the main pressure-controlled solenoid valve 130 of the solenoid valve in tested valve body 6, the lubricated solenoid valve 131 of controlling, the first switch is controlled solenoid valve 132, strange Clutch Control solenoid valve 133, second switch is controlled solenoid valve 134, even Clutch Control solenoid valve 135) carry out directly driving controlling, also can drive and control by the solenoid valve in 424 pairs of tested valve bodies 6 of TCU controller, cooling front oil temperature sensor 33d in tested valve body 6, the temperature signal that cooling rear oil temperature sensor 33e measures, shift signal and pressure transducer 41 that gearshift cylinder piston displacement sensor 40 is measured: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is that the pressure signal that lubrication pressure sensor 41f measures is connected with the A/D analog to digital conversion 418 of slave computer 402 real-time controllers by terminal box 423, or directly be connected with TCU424.attached input/output module (the A/D analog to digital conversion 418 of slave computer 402 has been adopted in the control of tested valve body 6, AO2 simulation output 421), PWM modulator 432 directly is connected with tested valve body 6, or by adopting the attached AO2 simulation output 421 of slave computer 402, DIO digital IO 422 is connected the dual redundant that is connected with tested valve body 6 again that is connected with TCU controller 424 and is connected control mode with the CAN communication module, its use is: in the tested valve body 6 control performance tests of routine, can adopt direct connection control mode, can simplify control mode, isolated to tested valve body 6, performance under the simple operation operating mode is tested, and when adopting TCU controller 424 to connect, the PWM that disconnects simultaneously integrated circuit board 421 controls output, input signal with AO2 simulation output 421, DIO digital IO 422 and CAN communication module 420 simulation TCU controllers 424, can simulate tested valve body 6 working conditions under the actual motion condition, so that the dynamic property of tested valve body 6 under the simulation actual condition tested, also can carry out to the ripe automatic transmission valve product of unknown performance and control strategy the performance simulation test.
Described slave computer 402 is connected with tested valve body 6 through input/output module 403 by A/D analog to digital conversion 418, AO2 simulation output 421, and A/D analog to digital conversion 418 is used for gathering the cooling front oil temperature sensor 33d of tested valve body 6, cooling rear oil temperature sensor 33e, gearshift cylinder piston displacement 40 and pressure 41 signals: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle are lubrication pressure sensor 41f; Slave computer 402 is simulated output 421 output control signals according to certain demand for control by AO2.
in the mode that the described TCU controller that is located at the dual redundant control system between slave computer 402 and tested valve body 6 is controlled, slave computer 402 is simulated output 421 by AO2, DIO digital IO 422, CAN communication module 420 is connected with TCU controller 424, the analog signal outputs such as AO2 simulation output 421 simulation accelerated pedal positions are to TCU controller 424, DIO digital IO 422 simulation rotating speeds, the speed of a motor vehicle, the signals such as shift switch are to TCU controller 424, simultaneously the switching value of TCU controller 424 outputs is inputted slave computer 402, the information and instruction of 420 simulations of CAN communication module and 424 communications of TCU controller.
Described slave computer 402 has been simulated the control parameter environment of TCU controller 424 operations, temperature, gearshift cylinder piston displacement, the signal of pressure and control parameter and the signal of slave computer 402 simulations of TCU controller 424 by gathering tested valve body 6, the working condition of the tested valve body 6 under the dry run condition drives and controls the solenoid valve in tested valve body.
The high temperature hydraulic circuit 510 of described high-low temperature hydraulic system comprises that an end enters high temperature flowline 201 through high temperature fuel tank 23, oil-feed stop valve 25, oil absorption filter 26, high temperature gear pump 27, high temperature hydraulic pressure fine filter 28a, high temperature hydropneumatic ball valve 29a; One end is through high temperature flowline 201, high temperature hydropneumatic ball valve 29a, and through high temperature proportion magnetic valve 16a and high temperature deadweight safety valve 17a, gets back to high temperature fuel tank 23 by high temperature oil returning tube 210.be connected with high temperature fuel outlet ball valve 20a with high temperature fuel tank 23, be located at high temperature fuel tank heater 24 and cooling down device 21 in the high temperature fuel tank, the high-temperature water cooling solenoid valve 34 that is connected with cooling down device 21 and cooling water filter 35, one end stretches into the high temperature fuel tank temperature sensor 33a in the high temperature fuel tank, high-temperature systems level switch 32a, high temperature tank gauge 22a, high temperature fuel tank air cleaner 31a and high temperature oil box mixer 10a, also comprise the high-temperature pipe tensimeter 7a that is located on high temperature flowline 201, the high temperature oil circuit motor coupler 50a and the high-temperature pump servomotor 15a that are connected with high temperature gear pump 27, high-temperature pump servomotor 15a is connected with the high-temperature pump encoder for servo motor and is connected with high-temperature pump servomotor controller 427 in input/output module 403, high temperature proportion magnetic valve 16a is connected with high temperature proportional solenoid valve control device 429 in input/output module 403, high temperature fuel tank heater 24 is connected with intelligent triac controller 431 in input/output module 403, high temperature fuel tank temperature sensor 33a is connected with resistor-type temperature signal regulation module 425 in input/output module 403 and is connected with TCU controller 424 simultaneously, heater surfaces temperature sensor 62 is connected with terminal box 423 in input/output module 403, high-temperature systems level switch 32a is connected with terminal box 423 in input/output module 403.
high-temperature pump servomotor 15a drives high temperature gear pump 27 by high temperature oil circuit motor coupler 50a, with the oil in the high temperature fuel tank 23 of double-layer heat insulation by oil-feed stop valve 25, oil absorption filter 26 sucks high temperature gear pump 27, between the endpiece of high temperature gear pump 27 and high temperature oil returning tube 210, cross-over connection has high temperature proportion magnetic valve 16a, high temperature deadweight safety valve 17a, can realize adjusting and safeguard protection to high temperature hydraulic circuit 510 output pressures, the pressure oil of high temperature gear pump 27 outputs is regulated through excess pressure, again by high temperature hydraulic pressure fine filter 28a, high temperature hydropneumatic ball valve 29a, high temperature flowline 201, test-filtration is satisfied in output, the high-temperature liquid force feed of temperature and pressure demand.Complete the hydraulic oil of test, a part enters high temperature pallet oil returning tube 209 by oil return pallet 49 and high temperature pallet oil return solenoid valve 44A, a part enters high temperature oil circuit oil returning tube 204 by high temperature oil circuit oil return solenoid valve 44a, hydraulic oil in high temperature pallet oil returning tube 209 and high temperature oil circuit oil returning tube 204 finally is flowed to high temperature oil returning tube 210, and returns high temperature fuel tank 23.
the motor speed signal that high-temperature pump encoder for servo motor 60 is measured is by high-temperature pump servomotor controller 427 theretos 423, the motor speed signal that cryopump encoder for servo motor 61 is measured is by cryopump servomotor controller 428 theretos 423, shift signal and pressure transducer 41 together with 40 measurements of gearshift cylinder piston displacement sensor: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, the pressure signal that oil returning tube pressure transducer 41g measures, the temperature signal that heater surfaces temperature sensor 62 is measured is thereto 423 together, and finally access the A/D analog to digital conversion 418 of slave computer 402 real-time controllers, the input collection of realization to testing table sensor signal analog quantity.
The low temperature hydraulic oil road 520 of described high-low temperature hydraulic system comprises that an end enters low temperature flowline 202, one ends through low temperature flowline 202, low temperature hydropneumatic ball valve 29b and gets back to low temperature fuel tank 12 through low temperature proportion magnetic valve 16b, low temperature deadweight safety valve 17b by low temperature oil returning tube 211 through low temperature fuel tank 12, low temperature fuel sucking pipe 13, low temperature gear-type pump 14, low temperature hydraulic pressure fine filter 28b, low temperature hydropneumatic ball valve 29b.The low temperature fuel outlet ball valve 20b that is connected with low temperature fuel tank 12, one end stretches into low temperature fuel tank temperature sensor 33b, cryogenic system level switch 32b, low temperature fuel tank air cleaner 31b, low temperature tank gauge 22b and the low temperature fuel tank stirrer 10b in low temperature fuel tank 12, the low temperature oil circuit motor coupler 50b and the cryopump servomotor 15b that also comprise the cryogenic piping tensimeter 7b that is located on low temperature flowline 202, be connected with low temperature gear-type pump 14; Cryopump servomotor 15b is connected with the cryopump encoder for servo motor and is connected with cryopump servomotor controller 428 in input/output module 403, low temperature proportion magnetic valve 16b is connected with low temperature proportional solenoid valve control device 430 in input/output module 403, low temperature fuel tank temperature sensor 33b is connected with resistor-type temperature signal regulation module 425 in input/output module 403 and is connected with TCU controller 424 simultaneously, and cryogenic system level switch 32b is connected with terminal box 423 in input/output module 403.
cryopump servomotor 15b drives low temperature gear-type pump 14 by low temperature oil circuit motor coupler 50b, hydraulic oil in low temperature fuel tank 12 is sucked low temperature gear-type pump 14, between the endpiece of low temperature gear-type pump 14 and low temperature oil returning tube 211, cross-over connection has low temperature proportion magnetic valve 16b and low temperature deadweight safety valve 17b, can realize low temperature gear-type pump 14 top hole pressures are regulated and safeguard protection, the pressure oil of low temperature gear-type pump 14 outputs is regulated through excess pressure, passing through low temperature hydraulic pressure fine filter 28b, low temperature hydropneumatic ball valve 29b, low temperature flowline 202, test-filtration is satisfied in output, the low temperature hydraulic oil of temperature and pressure demand.Complete the hydraulic oil of test, a part enters low temperature pallet oil returning tube 8 by oil return pallet 49 and low temperature pallet oil return solenoid valve 44B, a part enters low temperature oil circuit oil returning tube 9 by low temperature oil circuit oil return solenoid valve 44b, hydraulic oil in low temperature pallet oil returning tube 8 and low temperature oil circuit oil returning tube 9 finally is flowed to low temperature oil returning tube 211, and returns low temperature fuel tank 12.
The high low temperature of described high-low temperature hydraulic system shares oil circuit 500 and comprises and are connected the main inflow pipeline 205 that is connected by tee pipe fitting with high temperature flowline 201 with the low temperature flowline, the working connection flow speed control valve 18 that is connected with main inflow pipeline, the four-way pipe fitting that first end is connected with the working connection flow speed control valve; The accumulation of energy oil line pipe 208 that is connected with four-way pipe fitting the second end and accumulator stop valve 37 and accumulator 38; The tested valve body inflow pipeline 206 that is connected with four-way pipe fitting the 3rd end and establish thereon inflow pipeline flowmeter 39a, inflow pipeline tensimeter 7c, inflow pipeline temperature sensor 33c, inflow pipeline pressure transducer 41a and hydraulic quick coupler 45; The bypass flow that is connected with four-way pipe fitting the 4th end is regulated pipeline 203, bypass flow is regulated pipeline through establishing thereon bypass ball valve 42, bypass from flow speed control valve 43, and oil returning tube flowmeter 39b, hydraulic quick coupler 45 and oil returning tube pressure transducer 41g are connected with tested valve body oil returning tube 207; Be located at bypass flow regulate on pipeline 203 bypass from an end of the four-way pipe fitting between flow speed control valve 43 and oil returning tube flowmeter 39b by the valve body high temperature oil circuit oil returning tube 204 that is provided with high temperature oil circuit oil return solenoid valve 44a be connected with high temperature oil returning tube 210, the other end is connected with low temperature oil returning tube 211 by the valve body low temperature oil circuit oil returning tube 9 that is provided with low temperature oil circuit oil return solenoid valve 44b; Inflow pipeline temperature sensor 33c is connected with resistor-type temperature signal regulation module 425 in input/output module 403 and is connected with controller TCU simultaneously, inflow pipeline flowmeter 39a is connected with oil returning tube flowmeter 39b with flow displaying instrument 426 in input/output module 403 and is connected, and inflow pipeline pressure transducer 41a is connected with oil returning tube pressure transducer 41g with terminal box 423 in input/output module 403 and is connected.
Be flowed to main inflow pipeline 205 by high temperature flowline 201 and low temperature flowline 202, be divided into three the tunnel after working connection flow speed control valve 18:
One the tunnel is the accumulation of energy oil circuit, reaches accumulator 38 by accumulation of energy oil line pipe 208, accumulator stop valve 37, and 37 on-off actions of accumulator stop valve are used for changing the occasion uses such as accumulator 38;
One the tunnel is that bypass flow is regulated oil circuit, regulates pipeline 203, bypass ball valve 42 by bypass flow, enters the bypass of flow regulation shunting use from flow speed control valve 43, confluxes with tested valve body oil returning tube 207 afterwards;
If hot test is flowed back to double-layer heat insulation high temperature fuel tank 23 by high temperature oil circuit oil return solenoid valve 44a, valve body high temperature oil circuit oil returning tube 204, high temperature oil returning tube 210;
If low-temperature test flows back to low temperature fuel tank 12 by low temperature oil circuit oil return solenoid valve 44b, valve body low temperature oil circuit oil returning tube 9, low temperature oil returning tube 211;
Oil returning tube pressure transducer 41g also is housed on tested valve body oil returning tube 207, oil returning tube flowmeter 39b, and be connected with tested valve body 6 by hydraulic quick coupler 45;
Also have one the tunnel to be working connection, in-line flowmeter 39a, in-line tensimeter 7c, inflow pipeline temperature sensor 33c, inflow pipeline pressure transducer 41a are set on it, be connected with tested valve body 6 by tested valve body inflow pipeline 206, hydraulic quick coupler 45.
Tested valve body 6 flow into the fluid in oil return pallet 49, if hot test, by high temperature pallet oil return solenoid valve 44A, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flow back to double-layer heat insulation high temperature fuel tank 23;
If low-temperature test, by low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 flows back to low temperature fuel tank 12.
the test solution pressing system 530 of described high-low temperature hydraulic system comprise with high low temperature share in oil circuit 500 tested valve body inflow pipeline 206 be connected the tested valve body 6 that valve body oil returning tube 207 is connected, the strange clutch coupling 48a that docks with tested valve body oil circuit by hydraulic quick coupler 45 respectively, even clutch coupling 48b, be located at respectively clutch lubrication oil circuit and axle and be the pressure transducer 41 on lubricant passage way: strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, be located at respectively clutch lubrication oil circuit and axle and be the strange clutch lubrication flow meter 39c on lubricant passage way, even clutch lubrication flow meter 39d, axle is lubrication flow meter 39e, be located at the throttling valve 47a on strange clutch lubricant passage way, throttling valve 47b on even clutch lubricant passage way, be located at axle and be fluid refrigeratory 46 on lubricant passage way and be located at respectively cooling front oil temperature sensor 33d and cooling rear oil temperature sensor 33e before and after the fluid refrigeratory, be oil return pallet 49 corresponding to lubricant passage way outlet with clutch lubrication oil circuit and axle, the oil return pallet is connected with high temperature oil returning tube 210 by the high temperature pallet oil returning tube 209 that is provided with high temperature pallet oil return solenoid valve 44A, and be connected with low temperature oil returning tube 211 by the low temperature pallet oil returning tube 8 that is provided with low temperature pallet oil return solenoid valve 44B.
for test consistance and the vehicle-mounted state correspondence that improves tested valve body 6, the fluid refrigeratory 46 that vehicle-mounted state is docked with the valve body oil circuit, two clutch couplinges: strange clutch coupling 48a, even clutch coupling 48b, two clutch lubrication oil circuits are that lubricant passage way is connected with tested valve body 6 with hydraulic quick coupler 45 with axle, use throttling valve 47a, assignment of traffic throttling pore in 47b simulation clutch lubricant passage way, and add strange clutch lubrication flow meter 39c at required test oil circuit, even clutch lubrication flow meter 39d, axle is lubrication flow meter 39e, , pressure transducer 41: inflow pipeline pressure clutch 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, oil returning tube pressure transducer 41g, cooling front oil temperature sensor 33d, the sensors such as cooling rear oil temperature sensor 33e, the oil that leaks in tested valve body 6 processs of the test is collected in oil return pallet 49, if hot test, by high temperature pallet oil return solenoid valve 44A, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flows back to the high temperature fuel tank 23 of double-layer heat insulation, if low-temperature test, by low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 flows back to low temperature fuel tank 12.
the series of heat relay of testing table and switching signal comprise high-temperature systems chilled water filtration and warning switch 70, high, cryogenic system level switch 32a, 32b, high temperature oil absorption filter screen alarm switch 63, high temperature pressure filter screen alarm switch 64, low-temperature pressure filter screen alarm switch 65 and high-temperature stirring motor heat relay 66, low temperature stirring motor electrothermal relay 67, industry thermoacoustic refrigerator relay 68, oil mist collector motor relay 69, be connected by the DIO digital IO 422 of terminal box 423 with slave computer 402 real-time controllers, on off state or relay on-off state input slave computer 402 real-time controllers with series.
slave computer 402 real-time controllers are by DIO digital IO 422, terminal box 423 and power amplifier 433, relay on testing table is driven control, relay comprises: high-temperature stirring motor auxiliary reclay 71, low temperature stirring motor auxiliary reclay 72, oil mist collector motor auxiliary reclay 73, high-temperature pump servomotor auxiliary reclay 74, cryopump servomotor auxiliary reclay 75, well heater auxiliary reclay 76, industry refrigerator motor auxiliary reclay 77, high temperature oil way solenoid valve normally opened relay 80, high-temperature water cooling solenoid relay valve 81, low temperature oil circuit solenoid valve normally opened relay 82, bypass speed governing oil circuit ball valve relay 83, the normally closed interlock relay 84 of high temperature oil way solenoid valve, the normally closed interlock relay 85 of low temperature oil circuit solenoid valve, the normally closed interlock relay 86 of high-temperature pump servomotor, the normally closed interlock relay 87 of cryopump servomotor.Slave computer 402 is controlled in real time and is also passed through DIO digital IO 422, and terminal box 423 is connected with warning device 79, realizes collection and warning to warning message.
Referring to Fig. 3, power supply box 2 is by high temperature servomotor contactor 101, and high-temperature pump servomotor controller 427 is connected with high-temperature pump servomotor 15a, and high-temperature pump servomotor 15a drives high temperature gear pump 27.slave computer 402 real-time controllers are by DIO digital IO 422, terminal box 423, power amplifier 433, control high-temperature pump servomotor auxiliary reclay 74, by the normally closed interlock relay 86 of high-temperature pump servomotor, by high temperature servomotor contactor 101, high-temperature pump servomotor controller 427 is controlled the starting of high-temperature pump servomotor 15a and stops, the delivery rate of high temperature gear pump 27 passes through inflow pipeline flowmeter 39a with flow signal input flow rate Displaying Meter 426, then by terminal box 423, A/D analog to digital conversion 418 input slave computer 402 real-time processors 417, high-temperature pump servomotor 15a sends tach signal into high-temperature pump servomotor controller 427 by high-temperature pump encoder for servo motor 60, by terminal box 423, A/D analog to digital conversion 418 input slave computer 402 real-time processors 417, slave computer 402 real-time processors 417 are according to the high-temperature pump servomotor 15a tach signal of measuring, the control flow of the delivery rate of high temperature gear pump 27 and hope, after corresponding control algolithm, simulate output 416 and terminal box 423 by AO1, controlled quentity controlled variable is sent to high-temperature pump servomotor controller 427, control high-temperature pump servomotor 15a rotating speed, thereby the delivery rate of Dynamic Closed Loop Control high temperature gear pump 27 is big or small.The flow control principle that cryopump servomotor 15b drives low temperature gear-type pump 14 is identical therewith.
Shown in Figure 4 is high low temperature servomotor interlocking control circuit schematic diagram, due to high and low temperature hydraulic circuit 510 and 520 respectively by different high cryopump servomotor 15a, 15b controls, in the valve body thermocycling of automatic transmission, high temperature hydraulic circuit 510 is realized the controlling test under high temperature, the controlling test under low temperature is realized on low temperature hydraulic oil road 520, owing to being different hydraulic circuits, therefore identical tested valve body 6 need to interlock control to the driven by servomotor of high low temperature hydraulic circuit.power supply box 2 is connected with high-temperature pump servomotor controller 427 by high temperature servomotor contactor 101, control high-temperature pump servomotor 15a operation, slave computer 402 real-time controllers are by DIO digital IO 422, terminal box 423, power amplifier 433, control high-temperature pump servomotor auxiliary reclay 74, by the normally closed interlock relay 86 of high-temperature pump servomotor, high temperature servomotor contactor 101, high-temperature pump servomotor controller 427 is controlled stopping and operation of high-temperature pump servomotor 15a, power supply box 2 is connected with cryopump servomotor controller 428 by low temperature servomotor contactor 102, control cryopump servomotor 15b operation, slave computer 402 real-time controllers are by DIO digital IO 422, terminal box 423, power amplifier 433, control cryopump servomotor auxiliary reclay 75, by the normally closed interlock relay 87 of cryopump servomotor, low temperature servomotor contactor 102, cryopump servomotor controller 428 is controlled stopping and operation of cryopump servomotor 15b, normally closed interlock relay 87 interlocks of high-temperature pump servomotor auxiliary reclay 74 and cryopump servomotor are controlled in system, normally closed interlock relay 86 interlocks of cryopump servomotor auxiliary reclay 75 and high-temperature pump servomotor are controlled, under holding state, high-temperature pump servomotor auxiliary reclay 74 and cryopump servomotor auxiliary reclay 75 are in normally open, the normally closed interlock relay 87 of cryopump servomotor and the normally closed interlock relay 86 of high-temperature pump servomotor are in normally off, when needs use high temperature hydraulic circuit 510, closed high-temperature pump servomotor auxiliary reclay 74, due to the interlock effect, normally closed interlock relay 87 automatic cutouts of normally closed cryopump servomotor, make cryopump servomotor 15b fail to start, when needs use low temperature hydraulic oil road 520, closed cryopump servomotor auxiliary reclay 75, due to the interlock effect, normally closed interlock relay 86 automatic cutouts of normally closed high-temperature pump servomotor, make high-temperature pump servomotor 15a fail to start, thereby the interlocking that has realized high cryopump servomotor 15a and 15b in high low temperature hydraulic circuit 510 and 520 is controlled.
Referring to Fig. 5, be high temperature fuel tank heating and temperature control schematic diagram.in automatic transmission valve thermocycling platform except need to controlling the oil pump flow described in Fig. 3, also need the temperature of hydraulic system oil liquid is controlled: i.e. high temperature fuel tank heating and temperature control as shown in figure five, power supply box 2 is by well heater thyristor contactor 103, intelligence triac controller 431 is controlled high temperature fuel tank heater 24, 12V Switching Power Supply 120 is intelligent thyristor power supply, high temperature fuel tank temperature sensor, the inflow pipeline temperature sensor 33a of pilot valve body entrance, 33c is connected with terminal box 423 with heater surfaces temperature sensor 62 by resistor-type temperature conditioning module 425, connect again the A/D analog to digital conversion 418 of slave computer 402, with oil temperature input information controller.The DIO digital IO 422 of slave computer 402 passes through terminal box 423, power amplifier 433, and control heater auxiliary reclay 76, then by well heater thyristor contactor 103, intelligent triac controller 431 goes to control the break-make of high temperature fuel tank heater 24; Slave computer 402 can be according to the temperature level of expectation and the temperature of actual measurement, by certain algorithm and AO1 simulation output 416, terminal box 423, go to control the heating power size of high temperature fuel tank heater 24 by intelligent triac controller 431, realize the temperature closed loop of high temperature hydraulic circuit 510 is controlled.
referring to Fig. 6, control to tested valve body 6, main pressure-controlled solenoid valve 130 is arranged respectively on tested valve body 6, the lubricated solenoid valve 131 of controlling, the first switch is controlled solenoid valve 132, strange Clutch Control solenoid valve 133, second switch is controlled solenoid valve 134, 6 solenoid valves such as even Clutch Control solenoid valve 135 grade, be furnished with respectively inflow pipeline pressure transducer 41a on valve plate 4, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, cooling front oil temperature sensor 33d, cooling rear oil temperature sensor 33e, gearshift cylinder piston displacement sensor 40, tested valve body 6 has adopted twin-channel Redundant Control mode, wherein a kind of mode adopts slave computer 402 and attached A/D analog to digital conversion 418, AO2 simulation output 421 is directly controlled: the cooling front oil temperature sensor 33d in tested valve body 6, the temperature signal that cooling rear oil temperature sensor 33e measures, gear signal and pressure transducer 41 that gearshift cylinder piston displacement sensor 40 is measured: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is that the pressure signal that lubrication pressure sensor 41f measures is connected with the A/D analog to digital conversion 418 of slave computer 402 real-time controllers by terminal box 423, directly with relevant heat transfer agent input slave computer 402, slave computer 402 is simulated output 421 according to certain demand for control by AO2, terminal box 423 is connected with PWM modulator 432, can be to (the main pressure-controlled solenoid valve 130 of the solenoid valve in tested valve body 6, the lubricated solenoid valve 131 of controlling, the first switch is controlled solenoid valve 132, strange Clutch Control solenoid valve 133, second switch is controlled solenoid valve 134, even Clutch Control solenoid valve 135 carries out directly driving controlling, this mode relatively is applicable to tested valve body 6 is isolated, performance under stable state or simple operation operating mode is tested.another kind of control mode adopts with 424 communications of TCU controller and adopts AO2 simulation output 421, the virtual signal environmental manner of DIO digital IO 422 simulation TCU controller 424 outside operations: drive and control by the solenoid valve in 424 pairs of tested valve bodies 6 of TCU controller, cooling front oil temperature sensor 33d in tested valve body 6, the temperature signal that cooling rear oil temperature sensor 33e measures, gear signal and pressure transducer 41 that gearshift cylinder piston displacement sensor 40 is measured: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, the pressure signal that oil returning tube pressure transducer 41g measures directly is connected with TCU controller 424, be connected with slave computer 402 real-time controllers by CAN communication module 420, the relevant status informations such as pressure are beamed back slave computer 402 real-time controllers, can simulate tested valve body 6 working conditions under the actual motion condition, can test the dynamic property under tested valve body 6 simulation actual conditions, also can carry out the performance simulation test to tested valve body 6 products of the ripe automatic transmission of unknown performance and control strategy.Use dual redundant mechanism, when having improved the practicality of experimental test and reliability, expanded the test capability of system.Described output control signal is undertaken directly driving controlling by the solenoid valve group in 432 pairs of tested valve bodies 6 of PWM modulator; This solenoid valve group comprises main pressure-controlled solenoid valve 130, lubricated solenoid valve 131, the first switch control solenoid valve 132, strange Clutch Control solenoid valve 133, second switch control solenoid valve 134, the even Clutch Control solenoid valve 135 controlled.
Referring to Fig. 7 and Fig. 8, in order to realize thermocycling, adopted independently high low temperature hydraulic circuit 510,520 two hydraulic systems: in figure, hydraulic control circuit mainly comprises high temperature hydraulic circuit 510, low temperature hydraulic oil road 520, high low temperature shares oil circuit 500 and 530 4 major parts of test solution pressing system.wherein high temperature hydraulic circuit 510 mainly comprises high temperature oil box mixer 10a, high-temperature pump servomotor 15a, high temperature fuel outlet ball valve 20a, cooling down device 21, high temperature tank gauge 22a, the high temperature fuel tank 23 of double-layer heat insulation, high temperature fuel tank heater 24, oil-feed stop valve 25, oil absorption filter 26, high temperature gear pump 27, high temperature hydraulic pressure fine filter 28a, high temperature hydropneumatic ball valve 29a, high temperature fuel tank air cleaner 31a, high-temperature systems level switch 32a, high temperature fuel tank temperature sensor 33a, high-temperature water cooling solenoid valve 34, cooling water filter 35, the oil return of high temperature oil circuit, pallet oil return solenoid valve 44a, 44A, high temperature oil circuit motor coupler 50a, high temperature conduit tensimeter 7a, high temperature proportion magnetic valve 16a, high temperature deadweight safety valve 17a, high temperature flowline 201, valve body high temperature oil circuit oil returning tube 204, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 formations such as grade.Around the high temperature fuel tank 23 of double-layer heat insulation, high temperature fuel outlet ball valve 20a is arranged, high temperature tank gauge 22a, high temperature fuel tank air cleaner 31a, high-temperature systems level switch 32a, and the cooling down system that is consisted of by cooling down device 21, high-temperature water cooling solenoid valve 34, cooling water filter 35, by high temperature fuel tank temperature sensor 33a, the temperature elevation system that high temperature fuel tank heater 24 consists of, said system has consisted of the control to fuel tank inner fluid temperature, liquid level etc.high-temperature pump servomotor 15a drives high temperature gear pump 27 by high temperature oil circuit motor coupler 50a, with the oil in the high temperature fuel tank 23 of double-layer heat insulation by oil-feed stop valve 25, oil absorption filter 26 sucks high temperature gear pump 27, between the endpiece of high temperature gear pump 27 and high temperature oil returning tube 210, cross-over connection has high temperature proportion magnetic valve 16a, high temperature deadweight safety valve 17a, can realize adjusting and safeguard protection to high temperature hydraulic circuit 510 output pressures, the pressure oil of high temperature gear pump 27 outputs is regulated through excess pressure, again by high temperature hydraulic pressure fine filter 28a, high temperature hydropneumatic ball valve 29a, high temperature flowline 201, test-filtration is satisfied in output, the high-temperature liquid force feed of temperature and pressure demand.Complete the hydraulic oil of test, a part enters high temperature pallet oil returning tube 209 by oil return pallet 49 and high temperature pallet oil return solenoid valve 44A, a part enters high temperature oil circuit oil returning tube 204 by high temperature oil circuit oil return solenoid valve 44a, hydraulic oil in high temperature pallet oil returning tube 209 and high temperature oil circuit oil returning tube 204 finally is flowed to high temperature oil returning tube 210, and returns high temperature fuel tank 23.
low temperature hydraulic oil road 520 is by cryogenic piping tensimeter 7b, low temperature fuel tank stirrer 10b, low temperature fuel tank 12, low temperature fuel sucking pipe 13, low temperature gear-type pump 14, cryopump servomotor 15b, low temperature proportion magnetic valve 16b, low temperature deadweight safety valve 17b, low temperature tank gauge 22b, low temperature hydraulic pressure fine filter 28b, low temperature hydropneumatic ball valve 29b, low temperature fuel tank air cleaner 31b, cryogenic system level switch 32b, low temperature oil circuit oil return solenoid valve 44b, low temperature pallet oil return solenoid valve 44B, low temperature oil circuit motor coupler 50b, low temperature flowline 202, valve body low temperature oil circuit oil returning tube 9, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 formations such as grade.Wherein low temperature fuel tank 12 is placed in industrial refrigerator 11, low temperature fuel tank 12 placed around have low temperature fuel tank stirrer 10b, low temperature tank gauge 22b, low temperature fuel tank air cleaner 31b, cryogenic system level switch 32b, low temperature fuel tank 12 is placed in industrial refrigerator 11 control chambers, by low temperature fuel tank temperature sensor 33b, industry thermoacoustic refrigerator relay 68, industry refrigerator motor auxiliary reclay 77, industrial refrigerator 11 grades have consisted of under the cryogenic conditions control to fuel tank inner fluid temperature, liquid level etc. in interior said system.cryopump servomotor 15b drives low temperature gear-type pump 14 by low temperature oil circuit motor coupler 50b, hydraulic oil in low temperature fuel tank 12 is sucked low temperature gear-type pump 14, between low temperature gear-type pump 14 endpiece and low temperature oil returning tube 211, cross-over connection has low temperature proportion magnetic valve 16b and low temperature deadweight safety valve 17b, can realize adjusting and safeguard protection to low temperature gear-type pump 14 top hole pressures, the pressure oil of low temperature gear-type pump 14 outputs is regulated through excess pressure, again by low temperature hydraulic pressure fine filter 28b, low temperature hydropneumatic ball valve 29b, low temperature flowline 202, test-filtration is satisfied in output, the low temperature hydraulic oil of temperature and pressure demand.Complete the hydraulic oil of test, a part enters low temperature pallet oil returning tube 8 by oil return pallet 49 and low temperature pallet oil return solenoid valve 44B, a part enters low temperature oil circuit oil returning tube 9 by low temperature oil circuit oil return solenoid valve 44b, hydraulic oil in low temperature pallet oil returning tube 8 and low temperature oil circuit oil returning tube 9 finally is flowed to low temperature oil returning tube 211, and returns low temperature fuel tank 12.
High low temperature oil circuit part all has the servomotor of an adjustable speed and drives fixed displacement pump: high temperature gear pump 27, low temperature gear-type pump 14, the equal other high low temperature deadweight safety valve 17a that is connected on the output circuit of pump, 17b and high low temperature proportion magnetic valve 16a, 16b can regulate oil pump output pressure and safeguard protection; The flow of high-low temperature hydraulic system is controlled the delivery rate of two high low temperature gear-type pumps 27,14 by the rotating speed of controlling high cryopump servomotor 15a, 15b respectively, and by controlling high low temperature proportion magnetic valve 16a, 16b controls the pressure of this system.
The cryopump servomotor 15b that is located at the high-temperature pump servomotor 15a in high temperature hydraulic circuit 510 and is located in low temperature hydraulic oil road 520 is controlled by four relays 74,75,86,87 and two contactors 101, the 102 high and low temperature pump servomotor controllers of controlling 427,428, open and close complementary and interlock two relays 74,87 or two other relay 75,86 interlocks control, realize the interlocking of two servomotors startings is controlled.
Be respectively equipped with a pneumatic ball valve in high temperature hydraulic circuit 510 and low temperature hydraulic oil road 520, two pneumatic ball valves are controlled by two relays 80,82; High low temperature shares and is provided with two oil returns control solenoid valves in oil circuit 500, two oil returns are controlled solenoid valve and are controlled by two relays 84,85, open and close complementary and interlock two relays 80,85 or two other relay 82,84 interlocks control, realize that the switching interlocking of high low temperature oil circuit is controlled.
The well heater of intensification and the water cooling plant of cooling are arranged respectively in the high temperature fuel tank 23 of high temperature hydraulic circuit 510, the all break-makes of crossing control heater auxiliary reclay 76 and well heater thyristor contactor 103 control high temperature fuel tank heaters 24 of high-low temperature hydraulic system realize the control that high temperature fuel tank 23 is heated up; High-low temperature hydraulic system is controlled the cooling of high temperature fuel tank 23 and is controlled by controlling the break-make of high-temperature water cooling solenoid relay valve 81.
The low temperature fuel tank 12 on low temperature hydraulic oil road 520 is located in industrial refrigerator 11, and the break-make of the low temperature stirring motor auxiliary reclay 72 by controlling industrial refrigerator motor auxiliary reclay 77 and low temperature fuel tank stirrer 10b realizes the control of low temperature fuel tank 12 oil temperatures.
High low temperature shares oil circuit 500 by inflow pipeline temperature sensor 33c, accumulator stop valve 37, accumulator 38, in-line flowmeter 39a, inflow pipeline pressure transducer 41a, bypass ball valve 42, bypass is from flow speed control valve 43, hydraulic quick coupler 45, in-line tensimeter 7c, working connection flow speed control valve 18, bypass flow is regulated pipeline 203, main inflow pipeline 205, tested valve body inflow pipeline 206, tested valve body oil returning tube 207, working connection accumulation of energy oil line pipe 208 formations such as grade.by high temperature flowline 201 and the low temperature flowline 202 main inflow pipeline 205 that confluxes, enter working connection flow speed control valve 18, be divided into three the tunnel afterwards, leading up to working connection accumulation of energy oil line pipe 208, accumulator stop valve 37 reaches accumulator 38,37 on-off actions of accumulator stop valve are used for changing the occasion uses such as accumulator 38, the bypass flow of leading up to is regulated pipeline 203, bypass ball valve 42, enter the bypass of flow regulation shunting use from flow speed control valve 43, conflux with tested valve body oil returning tube 207 afterwards, if hot test is by high temperature oil circuit oil return solenoid valve 44a, valve body high temperature oil circuit oil returning tube 204, high temperature oil returning tube 210 flows back to the high temperature fuel tank 23 of double-layer heat insulation, if low-temperature test is by low temperature oil circuit oil return solenoid valve 44b, valve body low temperature oil circuit oil returning tube 9, low temperature oil returning tube 211 flows back to low temperature fuel tank 12, oil returning tube pressure transducer 41g also is housed on tested valve body oil returning tube 207, return line flowmeter 39b, and be connected with tested valve body 6 by hydraulic quick coupler 45, one road in-line flowmeter 39a, inflow pipeline tensimeter 7c, inflow pipeline temperature sensor 33c, inflow pipeline pressure transducer 41a, hydraulic quick coupler 45, tested valve body inflow pipeline 206 is connected with tested valve body 6.Tested valve body 6 flow into the fluid in oil return pallet 49, if hot test, by high temperature pallet oil return solenoid valve 44A, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flow back to the high temperature fuel tank 23 of double-layer heat insulation; If low-temperature test, by low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 flows back to low temperature fuel tank 12.
Test solution pressing system 530 is lubrication flow meter 39e by tested valve body 6, strange clutch lubrication flow meter 39c, even clutch lubrication flow meter 39d, axle, pressure transducer 41: strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, hydraulic quick coupler 45, fluid refrigeratory 46, clutch lubricant passage way throttling valve 47a, 47b, strange clutch coupling 48a, even clutch coupling 48b, oil return pallet 49 forms.for test consistance and the vehicle-mounted state correspondence that improves tested valve body 6, the fluid refrigeratory 46 that vehicle-mounted state is docked with the valve body oil circuit, strange clutch coupling 48a, even clutch coupling 48b etc. are connected with tested valve body 6 with hydraulic quick coupler 45, use throttling valve 47a, assignment of traffic throttling pore in 47b simulation odd even clutch lubricant passage way, and add strange clutch lubrication flow meter 39c at required test oil circuit, even clutch lubrication flow meter 39d, axle is lubrication flow meter 39e, pressure transducer 41: strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, cooling front oil temperature sensor 33d, the sensors such as cooling rear oil temperature sensor 33e, the oil that leaks in tested valve body 6 processs of the test is collected in oil return pallet 49, if hot test, by high temperature pallet oil return solenoid valve 44A, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flows back to the high temperature fuel tank 23 of double-layer heat insulation, if low-temperature test, by low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 flows back to low temperature fuel tank 12.
The test principle of this hydraulic system is: when carrying out hot test, open high temperature hydropneumatic ball valve 29a, close low temperature hydropneumatic ball valve 29b, close simultaneously low temperature oil circuit oil return solenoid valve 44b, low temperature pallet oil return solenoid valve 44B makes high low temperature oil circuit not connected; The system oil temperature control is realized by high low-temperature-rise temperature system, when oil temperature on the low side, when needing heating, by high temperature fuel tank temperature sensor 33a, the temperature elevation system that high temperature fuel tank heater 24 consists of is realized controlled heat temperature raising, when oil temperature higher, when needing cooling, open high-temperature water cooling solenoid valve 34, chilled water is realized cooling to system's oil temperature by cooling water filter 35 to cooling down device 21.The pressure oil of high temperature gear pump 27 outputs is by high temperature hydraulic pressure fine filter 28a, high temperature hydropneumatic ball valve 29a, high temperature flowline 201, and the high-temperature liquid force feed of filtration test demand is satisfied in output.when needs carry out routine tests to solenoid valve, test needs system that a stable constant pressure source is provided, high-temperature pump servomotor 15a drives high temperature gear pump 27 by high temperature oil circuit motor coupler 50a, with the oil in the high temperature fuel tank 23 of double-layer heat insulation by oil-feed stop valve 25, oil absorption filter 26 sucks high temperature gear pump 27, between the endpiece of high temperature gear pump 27 and high temperature oil returning tube 210, cross-over connection has high temperature proportion magnetic valve 16a, high temperature deadweight safety valve 17a, by controlling high temperature proportion magnetic valve 16a, can realize controlled system's output pressure, simultaneously working connection flow speed control valve 18 is opened fully, bypass ball valve 42 is closed, also just close bypass flow and regulated pipeline 203, during the pet valve test, pilot system only provides a constant controlled pressure source, loading section at pet valve can be used throttling valve 47a, 47b loads, draining returns pallet 49, and on corresponding loop connection traffic meter 39, oil temperature sensor 33, with pressure transducer 41.hydraulic oil in the holder food tray is by high temperature pallet oil return solenoid valve 44A, and high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flow back to the high temperature fuel tank 23 of double-layer heat insulation, when needs are tested tested valve body 6, test needs system that a stable constant current source is provided, high-temperature pump servomotor 15a drives high temperature gear pump 27 by high temperature oil circuit motor coupler 50a, with the oil in the high temperature fuel tank 23 of double-layer heat insulation by oil-feed stop valve 25, oil absorption filter 26 sucks high temperature gear pump 27, between the endpiece of high temperature gear pump 27 and high temperature oil returning tube 210, cross-over connection has high temperature proportion magnetic valve 16a, high temperature deadweight safety valve 17a, this moment with the adjusting pressure of high temperature proportion magnetic valve 16a suitably higher than the working pressure of tested valve body 6, regulate the rotating speed of high-temperature pump servomotor 15a, make the pilot system delivery rate contain the flow working range of tested valve body 6, when the test flow of required simulation is larger, working connection flow speed control valve 18 is adjusted to required flow, bypass ball valve 42 is closed, this moment, system provided a constant traffic sources, by the constant pilot system delivery rate of working connection flow speed control valve 18, unnecessary flow is realized overflow by high temperature proportion magnetic valve 16a, when the test flow of required simulation hour, stablize constant low discharge in order to obtain one, bypass ball valve 42 is opened, also namely open bypass flow and regulate pipeline 203, adjusted in concert working connection flow speed control valve 18 and bypass are from flow speed control valve 43 simultaneously, until both reach regime flow, and the flow of realizing both differences equals to test required flow, this moment, system provided the high temperature pressure source of valve body experimental test demand constant current, and uninterrupted is realized by working connection flow speed control valve 18 and the bypass bypass equal difference overflow mode from flow speed control valve 43.Complete the hydraulic oil of test, a part enters high temperature pallet oil returning tube 209 by oil return pallet 49 and high temperature pallet oil return solenoid valve 44A, a part enters high temperature oil circuit oil returning tube 204 by high temperature oil circuit oil return solenoid valve 44a, hydraulic oil in high temperature pallet oil returning tube 209 and high temperature oil circuit oil returning tube 204 finally is flowed to high temperature oil returning tube 210, and returns high temperature fuel tank 23.
When carrying out low-temperature test, open low temperature hydropneumatic ball valve 29b, close high temperature hydropneumatic ball valve 29a, close simultaneously high temperature oil circuit oil return solenoid valve 44a, high temperature pallet oil return solenoid valve 44A makes high low temperature oil circuit not connected; System's oil temperature is controlled by industrial refrigerator 11, in order to realize the even refrigeration of fluid, and helps flowing of fluid, has increased low temperature fuel tank stirrer 10b in low temperature fuel tank 12.The pressure oil of low temperature gear-type pump 14 outputs is by low temperature hydraulic pressure fine filter 28b, low temperature hydropneumatic ball valve 29b, low temperature flowline 202, and the low temperature hydraulic oil of filtration test demand is satisfied in output.when needs carry out routine tests to solenoid valve, test needs system that a stable constant pressure source is provided, cryopump servomotor 15b drives low temperature gear-type pump 14 by low temperature oil circuit motor coupler 50b, oil in low temperature fuel tank 12 is sucked low temperature gear-type pump 14, between the endpiece of low temperature gear-type pump 14 and low temperature oil returning tube 211, cross-over connection has low temperature proportion magnetic valve 16b, low temperature deadweight safety valve 17b, by controlling low temperature proportion magnetic valve 16b, can realize controlled system's output pressure, open working connection flow speed control valve 18 fully this moment simultaneously, bypass ball valve 42 is closed, also just close bypass flow and regulated pipeline 203, during the pet valve test, pilot system only provides a constant controlled pressure source, loading section at pet valve can be used throttling valve 47a, 47b loads, draining returns pallet 49, and on corresponding loop connection traffic meter 39, oil temperature sensor 33 and pressure transducer 41.hydraulic oil in the holder food tray passes through low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, and low temperature oil returning tube 211 flows back to low temperature fuel tank 12, when needs are tested tested valve body 6, test needs system that a stable constant current source is provided, cryopump servomotor 15b drives low temperature gear-type pump 14 by low temperature oil circuit motor coupler 50b, oil in low temperature fuel tank 12 is sucked low temperature gear-type pump 14, between the endpiece of low temperature gear-type pump 14 and low temperature oil returning tube 211, cross-over connection has low temperature proportion magnetic valve 16b, low temperature deadweight safety valve 17b, this moment with the adjusting pressure of low temperature proportion magnetic valve 16b suitably higher than the working pressure of tested valve body 6, regulate the rotating speed of cryopump servomotor 15b, make the pilot system delivery rate contain the flow working range of tested valve body 6, when the test flow of required simulation is larger, working connection flow speed control valve 18 is adjusted to required flow, bypass ball valve 42 is closed, also just close bypass flow and regulated pipeline 203, this moment, system provided a constant traffic sources, by the constant pilot system delivery rate of working connection flow speed control valve 18, unnecessary flow is realized overflow by low temperature proportion magnetic valve 16b, when the test flow of required simulation hour, stablize constant low discharge in order to obtain one, bypass ball valve 42 is opened, also namely open bypass flow and regulate pipeline 203, adjusted in concert working connection flow speed control valve 18 and bypass are from flow speed control valve 43 simultaneously, until both reach regime flow, and the flow of realizing both differences equals to test required flow, this moment, system provided the low-temperature pressure source of valve body experimental test demand constant current, and uninterrupted is realized by working connection flow speed control valve 18 and the bypass bypass equal difference overflow mode from flow speed control valve 43.Complete the hydraulic oil of test, a part enters low temperature pallet oil returning tube 8 by oil return pallet 49 and low temperature pallet oil return solenoid valve 44B, a part enters low temperature oil circuit oil returning tube 9 by low temperature oil circuit oil return solenoid valve 44b, hydraulic oil in low temperature pallet oil returning tube 8 and low temperature oil circuit oil returning tube 9 finally is flowed to low temperature oil returning tube 211, and returns low temperature fuel tank 12.
thermocycling no matter, all by hydraulic quick coupler 45 and tested valve body inflow pipeline 206, tested valve body oil returning tube 207 is connected with pilot valve body, for test consistance and the vehicle-mounted state correspondence that improves tested valve body 6, the fluid refrigeratory 46 that vehicle-mounted state is docked with the valve body oil circuit, strange clutch coupling 48a, even clutch coupling 48b etc. are connected with tested valve body 6 with hydraulic quick coupler 45, use throttling valve 47a, 47b simulates respectively the assignment of traffic throttling pore in odd even clutch lubricant passage way, and add strange clutch lubrication flow meter 39c at required test oil circuit, even clutch lubrication flow meter 39d, axle is lubrication flow meter 39e, pressure transducer 41: inflow pipeline pressure transducer 41a, strange clutch pressure sensor 41b, even clutch pressure sensor 41c, strange clutch lubrication pressure sensor 41d, even clutch lubrication pressure sensor 41e, axle is lubrication pressure sensor 41f, oil returning tube pressure transducer 41g, cooling front oil temperature sensor 33d, the sensors such as cooling rear oil temperature sensor 33e, performance for detection of valve body and loop.The oil that leaks in tested valve body 6 processs of the test is collected in oil return pallet 49, if hot test, by high temperature pallet oil return solenoid valve 44A, high temperature pallet oil returning tube 209, high temperature oil returning tube 210 flow back to the high temperature fuel tank 23 of double-layer heat insulation; If low-temperature test, by low temperature pallet oil return solenoid valve 44B, low temperature pallet oil returning tube 8, low temperature oil returning tube 211 flows back to low temperature fuel tank 12.
Because high low temperature oil circuit separates, reduced the requirements of type selecting such as oil pump, valve body, reduce system cost, and adopted the mode of the differential adjust flux of flow speed control valve, realized that simple and reliablely application valve body is in the test demand of stablizing under the low discharge test condition.
The requirement that high low temperature oil circuit interlocking is controlled when realizing the automatic transmission valve thermocycling has been adopted interlocking control circuit as shown in Figure 8,24V Switching Power Supply 121.The switching control valve relevant to the high temperature oil circuit has high temperature hydropneumatic ball valve 29a, high temperature oil circuit oil return solenoid valve 44a and high temperature pallet oil return solenoid valve 44A, slave computer 402 controller DIO digital IOs 422, by terminal box 423, power amplifier 433, high temperature oil way solenoid valve normally opened relay 80, the normally closed interlock relay 84 of high temperature oil way solenoid valve, synchro control high temperature hydropneumatic ball valve 29a, the open/close states of high temperature oil circuit oil return solenoid valve 44a and high temperature pallet oil return solenoid valve 44A; The switching control valve relevant to the low temperature oil circuit has low temperature hydropneumatic ball valve 29b, low temperature oil circuit oil return solenoid valve 44b and low temperature pallet oil return solenoid valve 44B, slave computer 402 controller DIO digital IOs 422, by terminal box 423, power amplifier 433, low temperature oil circuit solenoid valve normally opened relay 82, the normally closed interlock relay 85 of low temperature oil circuit solenoid valve, synchro control low temperature hydropneumatic ball valve 29b, the open/close states of low temperature oil circuit oil return solenoid valve 44b and low temperature pallet oil return solenoid valve 44B.Wherein normally closed interlock relay 85 interlocks of high temperature oil way solenoid valve normally opened relay 80 and low temperature oil circuit solenoid valve are controlled, when high temperature oil way solenoid valve normally opened relay 80 is closed, the normally closed interlock relay 85 of low temperature oil circuit solenoid valve is opened, otherwise, when high temperature oil way solenoid valve normally opened relay 80 is opened, normally closed interlock relay 85 closures of low temperature oil circuit solenoid valve; Normally closed interlock relay 84 interlocks of identical low temperature oil circuit solenoid valve normally opened relay 82 and high temperature oil way solenoid valve are controlled.
when needs carry out hot test, slave computer 402 controller DIO digital IOs 422, by terminal box 423, power amplifier 433 is controlled high temperature oil way solenoid valve normally opened relay 80 closures, the switching control valve relevant to the high temperature oil circuit---high temperature hydropneumatic ball valve 29a, high temperature oil circuit oil return solenoid valve 44a and high temperature pallet oil return solenoid valve 44A respective closed, and open with the normally closed interlock relay 85 of low temperature oil circuit solenoid valve of high temperature oil way solenoid valve normally opened relay 80 interlocks, low temperature hydropneumatic ball valve 29b, low temperature oil circuit oil return solenoid valve 44b and corresponding the closing of low temperature pallet oil return solenoid valve 44B, oil circuit switches to high temperature hydraulic circuit 510, when needs carry out low-temperature test, slave computer 402 controller DIO digital IOs 422, by terminal box 423, power amplifier 433 is controlled low temperature oil circuit solenoid valve normally opened relay 82 closures, the switching control valve relevant to the low temperature oil circuit---low temperature hydropneumatic ball valve 29b, low temperature oil circuit oil return solenoid valve 44b and low temperature pallet oil return solenoid valve 44B respective closed, and open with the normally closed interlock relay 84 of high temperature oil way solenoid valve of low temperature oil circuit solenoid valve normally opened relay 82 interlocks, high temperature hydropneumatic ball valve 29a, high temperature oil circuit oil return solenoid valve 44a and corresponding the closing of high temperature pallet oil return solenoid valve 44A, oil circuit switches to low temperature hydraulic oil road 520,
Adopt automatic transmission thermocycling platform electrohydraulic control system scheme of the present invention, can realize the control to hydraulic system temperature, flow, pressure, and can realize the interlocking control of high low temperature oil circuit; Adopt the scheme of directly controlling with the TCU Redundant Control, can realize the simulation test of the automatic speed transmission electrohydraulic control system performance under complex working condition.
Above embodiment is described the preferred embodiment of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that the common engineering technical personnel in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.

Claims (8)

1. the electrohydraulic control system of an automatic transmission valve thermocycling platform, comprise electric control system and high-low temperature hydraulic system, it is characterized in that:
(1) electric control system comprises host computer (401), slave computer (402), input/output module (403) and TCU controller (424), connect and control by netting twine (410) between host computer (401) and slave computer (402), input/output module (403) is connected 424 with the TCU controller) the dual redundant control system that consists of is connected with slave computer (402), tested valve body (6) directly is subjected to the control of this dual redundant control system, also comprises the warning device that is connected with input/output module (403);
(2) high-low temperature hydraulic system comprises that the independent high temperature hydraulic circuit (510) of controlling and low temperature hydraulic oil road be connected 520), the shared oil circuit (500) of high low temperature that is connected with the low temperature hydraulic oil road with the high temperature hydraulic circuit, share with high low temperature the test solution pressing system (530) that oil circuit is connected, tested valve body (6) is located in test solution pressing system (530); High-low temperature hydraulic system is connected with slave computer (402) through input/output module (403).
2. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1, it is characterized in that: described host computer (401) comprises mouse (411), keyboard (412), main frame (413), display (414);
Described slave computer (402) comprises cabinet (415), AO1 simulation output (416), real-time processor (417), A/D analog to digital conversion (418), internal storage location (419), CAN communication module (420), AO2 simulation output (421), DIO digital IO (422).
3. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: described input/output module (403) comprises terminal box (423), the high-temperature pump servomotor controller (427) that is connected with terminal box, cryopump servomotor controller (428), high temperature proportional solenoid valve control device (429), low temperature proportional solenoid valve control device (430), intelligence triac controller (431), resistor-type temperature signal regulation module (425), flow displaying instrument (426), PWM modulator (432) and power amplifier (433).
4. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: described high temperature hydraulic circuit (510) comprises that an end enters high temperature flowline (201) through high temperature fuel tank (23), oil-feed stop valve (25), oil absorption filter (26), high temperature gear pump (27), high temperature hydraulic pressure fine filter (28a), high temperature hydropneumatic ball valve (29a), one end is through high temperature flowline (201), high temperature hydropneumatic ball valve (29a), and through high temperature proportion magnetic valve (16a) and high temperature deadweight safety valve (17a), get back to high temperature fuel tank (23) by high temperature oil returning tube (210), be connected with high temperature fuel outlet ball valve (20a) with high temperature fuel tank (23), be located at high temperature fuel tank heater (24) and cooling down device (21) in the high temperature fuel tank, the high-temperature water cooling solenoid valve (34) that is connected with cooling down device (21) and cooling water filter (35), one end stretches into the high temperature fuel tank temperature sensor (33a) in the high temperature fuel tank, high-temperature systems level switch (32a), high temperature tank gauge (22a), high temperature fuel tank air cleaner (31a) and high temperature oil box mixer (10a), also comprise the high-temperature pipe tensimeter (7a) that is located on high temperature flowline (201), the high temperature oil circuit motor coupler (50a) and the high-temperature pump servomotor (15a) that are connected with high temperature gear pump (27), high-temperature pump servomotor (15a) is connected 60 with the high-temperature pump encoder for servo motor) be connected with high-temperature pump servomotor controller (427) in input/output module (403), high temperature proportion magnetic valve (16a) is connected with high temperature proportional solenoid valve control device (429) in input/output module (403), high temperature fuel tank heater (24) is connected with intelligent triac controller (431) in input/output module (403), high temperature fuel tank temperature sensor (33a) is connected with resistor-type temperature signal regulation module (425) in input/output module (403) and is connected with TCU controller (424) simultaneously, heater surfaces temperature sensor (62) is connected with terminal box (423) in input/output module (403), high-temperature systems level switch (32a) is connected with terminal box (423) in input/output module (403).
5. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: described low temperature hydraulic oil road (520) comprises that an end is through low temperature fuel tank (12), low temperature fuel sucking pipe (13), low temperature gear-type pump (14), low temperature hydraulic pressure fine filter 28(b), low temperature hydropneumatic ball valve (29b) enters low temperature flowline (202), one end is through low temperature flowline (202), low temperature hydropneumatic ball valve (29b) and through low temperature proportion magnetic valve (16b), low temperature deadweight safety valve (17b) is got back to low temperature fuel tank (12) by low temperature oil returning tube (211), the low temperature fuel outlet ball valve (20b) that is connected with low temperature fuel tank (12), one end stretches into the low temperature fuel tank temperature sensor (33b) in low temperature fuel tank (12), cryogenic system level switch (32b), low temperature fuel tank air cleaner (31b), low temperature tank gauge (22b) and low temperature fuel tank stirrer (10b), also comprise the cryogenic piping tensimeter (7b) that is located on low temperature flowline (202), the low temperature oil circuit motor coupler (50b) and the cryopump servomotor (15b) that are connected with low temperature gear-type pump (14), cryopump servomotor (15b) is connected 61 with the cryopump encoder for servo motor) be connected with cryopump servomotor controller (428) in input/output module (403), low temperature proportion magnetic valve (16b) is connected with low temperature proportional solenoid valve control device (430) in input/output module (403), low temperature fuel tank temperature sensor (33b) be connected with resistor-type temperature signal regulation module (425) in input/output module (403) and simultaneously and controller TCU(424) be connected, cryogenic system level switch (32b) is connected with terminal box (423) in input/output module (403).
6. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: described high low temperature share oil circuit (500) comprise by tee pipe fitting is connected 202 with high temperature flowline (201) with the low temperature flowline) the main inflow pipeline (205) that is connected, the working connection flow speed control valve (18) that is connected with main inflow pipeline, the four-way pipe fitting that first end is connected with the working connection flow speed control valve; The accumulation of energy oil line pipe (208) that is connected with four-way pipe fitting the second end and accumulator stop valve (37) and accumulator (38); The tested valve body inflow pipeline (206) that is connected with four-way pipe fitting the 3rd end and establish thereon inflow pipeline flowmeter (39a), inflow pipeline tensimeter (7c), inflow pipeline temperature sensor (33c), inflow pipeline pressure transducer (41a) and hydraulic quick coupler (45); The bypass flow that is connected with four-way pipe fitting the 4th end is regulated pipeline (203), bypass flow is regulated pipeline through establishing thereon bypass ball valve (42), bypass from flow speed control valve (43), and oil returning tube flowmeter (39b), hydraulic quick coupler (45) are connected 41g with the oil returning tube pressure transducer) be connected with tested valve body oil returning tube (207); Be located at bypass flow regulate on pipeline (203) bypass from an end of the four-way pipe fitting between flow speed control valve (43) and oil returning tube flowmeter (39b) by the valve body high temperature oil circuit oil returning tube (204) that is provided with high temperature oil circuit oil return solenoid valve (44a) be connected with high temperature oil returning tube (210), the other end is connected with low temperature oil returning tube (211) by the valve body low temperature oil circuit oil returning tube (9) that is provided with low temperature oil circuit oil return solenoid valve (44b); Inflow pipeline temperature sensor (33c) is connected with resistor-type temperature signal regulation module (425) in input/output module (403) and is connected with controller TCU simultaneously, inflow pipeline flowmeter (39a) is connected 39b with the oil returning tube flowmeter) be connected with flow displaying instrument (426) in input/output module (403) respectively, inflow pipeline pressure transducer (41a) is connected 41g with the oil returning tube pressure transducer) be connected with terminal box (423) in input/output module (403) respectively.
7. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: described test solution pressing system (530) comprises with high low temperature and shares tested valve body (6) that the tested valve body inflow pipeline (206) in oil circuit (500) and the valve body oil returning tube (207) of being connected be connected, passes through the strange clutch coupling (48a) that hydraulic quick coupler (45) docks with tested valve body oil circuit respectively, and even clutch coupling (48b), to be located at clutch lubrication oil circuit and axle respectively be pressure transducer (41) on lubricant passage way, strange clutch pressure sensor (41b), even clutch pressure sensor (41c), strange clutch lubrication pressure sensor (41d), even clutch lubrication pressure sensor (41e), axle is lubrication pressure sensor (41f), be located at respectively clutch lubrication oil circuit and axle and be the strange clutch lubrication flow meter (39c) on lubricant passage way, even clutch lubrication flow meter (39d), axle is lubrication flow meter (39e), be located at the throttling valve (47a) on strange clutch lubricant passage way, throttling valve (47b) on even clutch lubricant passage way, be located at axle and be fluid refrigeratory (46) on lubricant passage way and be located at respectively cooling front oil temperature sensor (33d) and cooling rear oil temperature sensor (33e) before and after the fluid refrigeratory, be oil return pallet (49) corresponding to lubricant passage way outlet with clutch lubrication oil circuit and axle, the oil return pallet is connected with high temperature oil returning tube (210) by the high temperature pallet oil returning tube (209) that is provided with high temperature pallet oil return solenoid valve (44A), and be connected with low temperature oil returning tube (211) by the low temperature pallet oil returning tube (8) that is provided with low temperature pallet oil return solenoid valve (44B).
8. the electrohydraulic control system of a kind of automatic transmission valve thermocycling platform according to claim 1 and 2, it is characterized in that: the low temperature fuel tank (12) on low temperature hydraulic oil road (520) is located in industrial refrigerator (11), the break-make of the low temperature stirring motor auxiliary reclay (72) by controlling industrial refrigerator motor auxiliary reclay (77) and low temperature fuel tank stirrer (10b) realizes the control to low temperature fuel tank (12) oil temperature.
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