CN104849059A - Engine comprehensive performance measuring and controlling system based on thermostatic control of engine coolant temperature - Google Patents
Engine comprehensive performance measuring and controlling system based on thermostatic control of engine coolant temperature Download PDFInfo
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Abstract
The invention discloses an engine comprehensive performance measuring and controlling system based on thermostatic control of engine coolant temperature. The engine comprehensive performance measuring and controlling system comprises a measured power platform, a single-chip microcomputer (1), a measured engine disposed on the measured power platform, a measuring and controlling instrument (3), a motor controller (2), an accelerator driver (4) connected with the measuring and controlling instrument (3), an engine oil constant temperature system (5), an engine coolant temperature thermostatic control system (6), an engine fuel oil thermostatic control system (7), an intelligent oil consumption detecting system (8), and a power testing system (9), wherein the measuring and controlling instrument (3) and the motor controller (2) are connected with the single-chip microcomputer (1), the engine oil constant temperature system (5), the engine coolant temperature thermostatic control system (6), the engine fuel oil thermostatic control system (7), and the intelligent oil consumption detecting system (8) are connected with the measured engine, the input end of the power testing system (9) is connected with the measured engine, and the output end of the power testing system (9) is connected with the single-chip microcomputer (1). The engine comprehensive performance measuring and controlling system may automatically control the coolant temperature in an engine tank so as to guarantee the coolant temperature to be within a constant temperature range and improve the accuracy of engine comprehensive performance assessment.
Description
Technical field
The present invention relates to Engine Block Test field, specifically refer to a kind of based on the thermostatically controlled engine performance TT&C system of engine water temperature.
Background technology
People improve constantly the reliability of automobile, the requirement of the aspect such as security and green, and engine is as the heart component of automobile, its technical merit directly has influence on the performance index such as its dynamic property, economy and discharge, and the frequency of engine breakdown is also the highest.Engine performance test is the Main Means judging condition of the engine quality, and be also the important content of automotive check and maintenance job, therefore engine performance measuring is more and more subject to people's attention.
Engine is in the process of work, and its water temperature of passing in time can rise, if engine water temperature is too high, directly can affect the test of engine performance, serious also can damage engine.And traditional engine performance test macro can not well control engine water temperature, therefore affect the Performance Evaluation of engine before dispatching from the factory.
Summary of the invention
The object of the invention is to solve current used engine performance test macro and well to the defect that engine water temperature controls, can not provide a kind of based on the thermostatically controlled engine performance TT&C system of engine water temperature.
Object of the present invention is by following technical proposals reality: a kind of based on the thermostatically controlled engine performance TT&C system of engine water temperature, comprise tested power platform, single-chip microcomputer, be arranged on the tested engine on tested power platform, the measurement and control instrument be connected with single-chip microcomputer and electric machine controller, the accelerator drive instrument be connected with measurement and control instrument, the engine motor oil constant temperature system be connected with tested engine, engine water temperature thermostatic control system, engine fuel constant temperature system and intelligent fuel consumption detection system, and input end is connected with tested engine, the power test system that output terminal is then connected with single-chip microcomputer forms.Described engine motor oil constant temperature system, engine water temperature thermostatic control system, engine fuel constant temperature system and intelligent fuel consumption detection system are all connected with single-chip microcomputer, and described measurement and control instrument is also connected with tested engine; Described engine water temperature thermostatic control system comprises engine water tank, temperature sensor, solenoid valve, suction pump, refrigeratory, filtrator, triggering system, rising pipe and water inlet pipe; The water inlet of this refrigeratory is connected with engine water tank by rising pipe, its water delivering orifice is then connected with engine water tank by water inlet pipe, solenoid valve is then arranged on rising pipe, suction pump to be then arranged on rising pipe and between solenoid valve and refrigeratory, filtrator is arranged on water inlet pipe, temperature sensor is then arranged on bottom engine water tank, described solenoid valve, suction pump are all connected with triggering system, between triggering system and temperature sensor, be also provided with processes temperature signal system.
Further, described processes temperature signal system is by triode VT6, triode VT7, triode VT8, diode D12, positive pole is connected with the N pole of diode D12 after resistance R14 through resistance R15 in turn, the electric capacity C9 that negative pole is then connected with the base stage of triode VT8 after resistance R22, positive pole is connected with the tie point of resistance R15 with resistance R14, negative pole is then in turn through electric capacity C8 that resistance R19 is connected with the P pole of diode D12 after resistance R20, one end is connected with the negative pole of electric capacity C8, the resistance R16 that the other end is then connected with the positive pole of electric capacity C9 after resistance R17, N pole is connected with the base stage of triode VT7, P pole is the diode D10 of ground connection after resistance R18 then, N pole is connected with the P pole of diode D10, the diode D11 that P pole is then connected with the P pole of diode D12 after resistance R21, one end is connected with the P pole of diode D12, the resistance R23 that the other end is connected with the emitter of triode VT8, positive pole is connected with the P pole of diode D12 after resistance R24, while negative pole is connected with the P pole of diode D11, the electric capacity C10 of ground connection forms, the collector of described triode VT6 is connected with the positive pole of electric capacity C8, emitter is connected with the collector of triode VT7, base stage is connected with the negative pole of electric capacity C8, the base stage of described triode VT7 is connected with the positive pole of electric capacity C9, emitter is connected with the tie point of resistance R20 with resistance R19.
Described triggering system is by transformer T, be arranged on the telefault L1 on the former limit of transformer T, be arranged on telefault L2 and the telefault L3 of transformer secondary, the front end signal treatment circuit be connected with telefault L1, the intermediate treatment circuit be connected with telefault L2, the sensor-triggered control circuit be connected with intermediate treatment circuit, the signal trimming circuit be connected with telefault L3, and form with the suction pump trigger control circuit that signal trimming circuit is connected with sensor-triggered control circuit simultaneously.
Described front end signal treatment circuit comprises fuse R1, diode bridge rectifier U, electric capacity C1, diode D2, and voltage stabilizing diode D1; One end of fuse R1 is connected with an input end of diode bridge rectifier U, the other end is as a signal input part of circuit, the positive pole of electric capacity C1 is connected with two output terminals of diode bridge rectifier U respectively with negative pole, and the N pole of voltage stabilizing diode D1 is connected with the positive pole of electric capacity C1, its P pole is then connected with the negative pole of electric capacity C1 after diode D2; The Same Name of Ends of described telefault L1 is connected with the positive pole of electric capacity C1, its non-same polarity is connected with the negative pole of electric capacity C1.
Described intermediate treatment circuit is by triode VT1, unidirectional thyristor D4, N pole is connected with the N pole of unidirectional thyristor D4, the diode D3 that P pole is then connected with the non-same polarity of telefault L2, the resistance R2 be in parallel with diode D3, positive pole is connected with the N pole of diode D3, the electric capacity C2 that negative pole is then connected with the P pole of unidirectional thyristor D4, one end is connected with the N pole of unidirectional thyristor D4, the inductance L 4 that the other end is connected with the emitter of triode VT1, one end is connected with the control pole of unidirectional thyristor D4, the resistance R3 that the other end is connected with the base stage of triode VT1, and one end is connected with the base stage of triode VT1, the resistance R4 that the other end is connected with signal trimming circuit forms, the P pole of described unidirectional thyristor D4 is connected with the Same Name of Ends of telefault L2, and the emitter and collector of triode VT1 is all connected with sensor-triggered control circuit, base stage is connected with the P pole of unidirectional thyristor D4.
Described sensor-triggered control circuit is by flip chip U1, triode VT2, triode VT3, one end is connected with the collector of triode VT1, the resistance R5 that the other end is connected with the VDD pin of flip chip U1, positive pole is connected with the collector of triode VT1, the electric capacity C3 that negative pole is then connected with the FB pin of flip chip U1 after relay K, N pole is connected with the base stage of triode VT3 after resistance R7, the diode D5 that P pole is connected with tie point and the suction pump trigger control circuit of relay K with electric capacity C3 simultaneously, one end is connected with the CS pin of flip chip U1, the resistance R8 that the other end is connected with the P pole of diode D5, and the resistance R6 be serially connected between the base stage of triode VT2 and emitter forms, the BD pin of described flip chip U1 is connected with the emitter of triode VT1, GND pin ground connection, FB pin are connected with the collector of triode VT3, the base stage of triode VT2 is connected with the BD pin of flip chip U1, collector is connected with the SW pin of flip chip U1, emitter is connected with the emitter of triode VT3, the emitter of triode VT3 also after the normally opened contact K-1 of relay K as signal one output terminal.
Described signal trimming circuit is by triode VT4, the diode D6 that P pole is connected with the non-same polarity of telefault L3, N pole is connected with the base stage of triode VT4, the electric capacity C4 that positive pole is connected with the N pole of diode D6, negative pole is connected with the Same Name of Ends of telefault L3, the resistance R9 be in parallel with electric capacity C4, the resistance R10 that one end is connected with the collector of triode VT4, the other end is connected with the Same Name of Ends of telefault L3, and the resistance R11 that one end is connected with resistance R4, the other end is connected with the Same Name of Ends of telefault L3 forms; The emitter of institute triode VT4 is all connected with suction pump trigger control circuit with the Same Name of Ends of telefault L3.
Described suction pump trigger control circuit is by triode VT5, bidirectional thyristor D9, N pole is connected with the base stage of triode VT5 after resistance R13, the diode D8 that P pole is then connected with the Same Name of Ends of telefault L3 after electric capacity C8, N pole is connected with the P pole of diode D8, the voltage stabilizing diode D7 that P pole is connected with the emitter of triode VT4, the electric capacity C5 be in parallel with voltage stabilizing diode D7, positive pole is connected with the P pole of voltage stabilizing diode D7, the electric capacity C6 that negative pole is connected with the first anode of bidirectional thyristor D9, one end is connected with the P pole of voltage stabilizing diode D7, the resistance R12 that the other end is connected with the base of triode VT5, and positive pole is connected with the emitter of triode VT5, negative pole forms with the electric capacity C7 that the first anode of bidirectional thyristor D9 is connected with second anode simultaneously, the control pole of described bidirectional thyristor D9 is connected with the collector of triode VT5, and the emitter of triode VT5 is connected with the P pole of voltage stabilizing diode D7 and the P pole of diode D5 simultaneously.
Described flip chip U1 is ACT364 integrated chip.
Described temperature sensor is BD-WZP-PT100 type temperature sensor.
The present invention compared with prior art has the following advantages and beneficial effect:
1, the present invention can control automatically to the water temperature in engine water tank, to guarantee that water temperature maintains within the scope of stationary temperature.
2, the present invention's temperature sensor gathers water temperature signal, and this temperature sensor reaction velocity is fast, precision is high, ensure that the accuracy that water temperature signal gathers.
3, invention increases the accuracy of engine performance assessment.
4, structure of the present invention is simple, and the electronic component used is with low cost.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is engine water temperature thermostatic control system structural representation of the present invention;
Fig. 3 is processes temperature signal circuit system structural representation of the present invention;
Fig. 4 is triggering system electrical block diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, the present invention includes survey power platform, single-chip microcomputer 1, be fixed on the tested engine on tested power platform, the measurement and control instrument 3 be connected with single-chip microcomputer 1 and electric machine controller 2, the accelerator drive instrument 4 be connected with measurement and control instrument 3, the engine motor oil constant temperature system 5 be connected with tested engine, engine water temperature thermostatic control system 6, engine fuel constant temperature system 7 and intelligent fuel consumption detection system 8, the power test system 9 that input end is connected with tested engine, output terminal is then connected with single-chip microcomputer 1.Meanwhile, engine motor oil constant temperature system 5, engine water temperature thermostatic control system 6, engine fuel constant temperature system 7 and intelligent fuel consumption detection system 8 are all connected with single-chip microcomputer 1 by RS232 connection, and measurement and control instrument 3 is also connected with tested engine.
Wherein, single-chip microcomputer 1 is as control system of the present invention, electric machine controller 2 is for controlling the start and stop of tested engine, accelerator drive instrument 4 is for providing fuel oil for tested engine, and shown by measurement and control instrument 3 and control its fuel delivery amount, engine motor oil constant temperature system 5 can control tested in-engine oil temperature, it is made to remain on certain temperature range, engine water temperature thermostatic control system 6 is then for controlling the water temperature of tested engine, and intelligent fuel consumption detection system 8 then can detect the transient state oil consumption of tested engine.If the fuel oil temperature of engine is too high, can affect the oil consumption of tested engine under transient condition and detect, engine fuel constant temperature system 7 then can control the fuel oil temperature of tested engine, makes it remain on certain temperature range.Engine motor oil constant temperature system 5, engine water temperature thermostatic control system 6, engine fuel constant temperature system 7, intelligent fuel consumption detection system 8 and the data collected by power test system 9 all flow to single-chip microcomputer 1 by RS232 connection, and operator then can recognize the property indices of tested engine by single-chip microcomputer 1.
In order to better control tested engine water temperature, as shown in Figure 2, engine water temperature thermostatic control system 6 comprises engine water tank 61, temperature sensor 62, solenoid valve 63, suction pump 64, refrigeratory 65, filtrator 66, triggering system 67, rising pipe 68, water inlet pipe 69, processes temperature signal system 60.Connected mode is, the water inlet of this refrigeratory 65 is connected with engine water tank 61 by rising pipe 68, so that the high-temperature water in engine water tank 61 can be input in refrigeratory 65 by rising pipe 68.The water delivering orifice of refrigeratory 65 is then connected with engine water tank 61 by water inlet pipe 69, can be transmitted back in engine water tank 61 by water inlet pipe 69 by the cooled chilled water of refrigeratory 65.Solenoid valve 63 is arranged on rising pipe 68, and suction pump 64 to be arranged on rising pipe 68 and between solenoid valve 63 and refrigeratory 65.Filtrator 66 is arranged on water inlet pipe 69, and temperature sensor 62 is arranged on bottom engine water tank 61, and described solenoid valve 63, suction pump 64 are all connected with triggering system 67.The input end of processes temperature signal system 60 is connected with the output terminal of temperature sensor 62, and its output terminal is then connected with the input end of triggering system 67.
Wherein, temperature sensor 62 can detect the water temperature in engine water tank 61, and temperature signal is changed into voltage signal exports to processes temperature signal system 60.The BD-WZP-PT100 type temperature sensor that this temperature sensor 62 adopts Bo electricity Science and Technology Ltd. of Shenzhen to produce realizes.As when water temperature is below 40 DEG C, the voltage signal that temperature sensor 62 sends is more weak, and at this moment processes temperature signal system 60 does not work.After cooling water temperature is more than 40 DEG C, the voltage signal grow that temperature sensor 62 sends, at this moment processes temperature signal system 60 is started working, and makes triggering system 67 obtain electric work.At this moment to be opened by triggering system 67 Controlling solenoid valve 63 and suction pump 64 starts.High-temperature water in engine water tank 61 is then transported to refrigeratory 65 by rising pipe 68 and cools, and cooled water is transmitted back in engine water tank by water inlet pipe 69 and continues to use after filter 66 filters, and the water after filter 66 filters is more clean.
Wherein processes temperature signal system 60 is emphasis of the present invention, as shown in Figure 3, it is by triode VT6, triode VT7, triode VT8, diode D12, positive pole is connected with the N pole of diode D12 after resistance R14 through resistance R15 in turn, the electric capacity C9 that negative pole is then connected with the base stage of triode VT8 after resistance R22, positive pole is connected with the tie point of resistance R15 with resistance R14, negative pole is then in turn through electric capacity C8 that resistance R19 is connected with the P pole of diode D12 after resistance R20, one end is connected with the negative pole of electric capacity C8, the resistance R16 that the other end is then connected with the positive pole of electric capacity C9 after resistance R17, N pole is connected with the base stage of triode VT7, P pole is the diode D10 of ground connection after resistance R18 then, N pole is connected with the P pole of diode D10, the diode D11 that P pole is then connected with the P pole of diode D12 after resistance R21, one end is connected with the P pole of diode D12, the resistance R23 that the other end is connected with the emitter of triode VT8, positive pole is connected with the P pole of diode D12 after resistance R24, while negative pole is connected with the P pole of diode D11, the electric capacity C10 of ground connection forms.The collector of described triode VT6 is connected with the positive pole of electric capacity C8, emitter is connected with the collector of triode VT7, base stage is connected with the negative pole of electric capacity C8.The base stage of described triode VT7 is connected with the positive pole of electric capacity C9, emitter is connected with the tie point of resistance R20 with resistance R19.The tie point of described resistance R16 and resistance R17 connects 15V voltage, the N pole of diode D12 together with the emitter of triode VT6 as the input end of circuit the emitter and collector of triode VT8 as the output terminal of circuit.
As shown in Figure 4, this triggering system 67 is by transformer T, be arranged on the telefault L1 on the former limit of transformer T, be arranged on telefault L2 and the telefault L3 of transformer secondary, the front end signal treatment circuit 71 be connected with telefault L1, the intermediate treatment circuit 72 be connected with telefault L2, the sensor-triggered control circuit 73 be connected with intermediate treatment circuit 72, the signal trimming circuit 74 be connected with telefault L3, and form with the suction pump trigger control circuit 75 that signal trimming circuit 74 is connected with sensor-triggered control circuit 73 simultaneously.
Front end signal treatment circuit 71 wherein comprises fuse R1, diode bridge rectifier U, electric capacity C1, diode D2, and voltage stabilizing diode D1.During connection, one end of fuse R1 be connected with an input end of diode bridge rectifier U its other end then together with another input end of diode bridge rectifier U as the input end of circuit, this input end is then connected with the output terminal of processes temperature signal system 60.The positive pole of electric capacity C1 is connected with two output terminals of diode bridge rectifier U respectively with negative pole, and the N pole of voltage stabilizing diode D1 is connected with the positive pole of electric capacity C1, its P pole is then connected with the negative pole of electric capacity C1 after diode D2.The Same Name of Ends of described telefault L1 is connected with the positive pole of electric capacity C1, its non-same polarity is connected with the negative pole of electric capacity C1.The signal that temperature sensor 62 sends carries out boosting by transformer T again and processes after diode bridge rectifier U rectification, electric capacity C1 filtering and voltage stabilizing diode D1 voltage stabilizing.The signal exported from transformer T is then divided into two-way, and wherein a road is input to intermediate treatment circuit 72, and another road is then input to signal trimming circuit 74.
Wherein a road signal is input to sensor-triggered control circuit 73 again after intermediate treatment circuit 72 processes, this intermediate treatment circuit 72 is by triode VT1, unidirectional thyristor D4, N pole is connected with the N pole of unidirectional thyristor D4, the diode D3 that P pole is then connected with the non-same polarity of telefault L2, the resistance R2 be in parallel with diode D3, positive pole is connected with the N pole of diode D3, the electric capacity C2 that negative pole is then connected with the P pole of unidirectional thyristor D4, one end is connected with the N pole of unidirectional thyristor D4, the inductance L 4 that the other end is connected with the emitter of triode VT1, one end is connected with the control pole of unidirectional thyristor D4, the resistance R3 that the other end is connected with the base stage of triode VT1, and one end is connected with the base stage of triode VT1, the resistance R4 that the other end is connected with signal trimming circuit 74 forms.The P pole of described unidirectional thyristor D4 is connected with the Same Name of Ends of telefault L2, and the emitter and collector of triode VT1 is all connected with sensor-triggered control circuit 73, base stage is connected with the P pole of unidirectional thyristor D4.
Described sensor-triggered control circuit 73 is by flip chip U1, triode VT2, triode VT3, one end is connected with the collector of triode VT1, the resistance R5 that the other end is connected with the VDD pin of flip chip U1, positive pole is connected with the collector of triode VT1, the electric capacity C3 that negative pole is then connected with the FB pin of flip chip U1 after relay K, N pole is connected with the base stage of triode VT3 after resistance R7, the diode D5 that P pole is connected with tie point and the suction pump trigger control circuit 75 of relay K with electric capacity C3 simultaneously, one end is connected with the CS pin of flip chip U1, the resistance R8 that the other end is connected with the P pole of diode D5, and the resistance R6 be serially connected between the base stage of triode VT2 and emitter forms, the BD pin of described flip chip U1 is connected with the emitter of triode VT1, GND pin ground connection, FB pin are connected with the collector of triode VT3, the base stage of triode VT2 is connected with the BD pin of flip chip U1, collector is connected with the SW pin of flip chip U1, emitter is connected with the emitter of triode VT3, the emitter of triode VT3 also forms the first output terminal of signal after the normally opened contact K-1 of relay K together with the FB pin of flip chip U1, and this first output terminal is then connected with the signal input part of solenoid valve 63.When sensor-triggered control circuit 73 has signal to input, the FB pin of flip chip U1 exports high level, and that relay K is obtained is electric, at this moment the normally opened contact K-1 of relay K closed make solenoid valve 63 electric and open.In order to better implement the present invention, this flip chip U1 is preferably ACT364 integrated chip.
Meanwhile, another road signal is input to suction pump trigger control circuit 75 after signal trimming circuit 74 processes.And this signal trimming circuit 74 is by triode VT4, the diode D6 that P pole is connected with the non-same polarity of telefault L3, N pole is connected with the base stage of triode VT4, the electric capacity C4 that positive pole is connected with the N pole of diode D6, negative pole is connected with the Same Name of Ends of telefault L3, the resistance R9 be in parallel with electric capacity C4, the resistance R10 that one end is connected with the collector of triode VT4, the other end is connected with the Same Name of Ends of telefault L3, and the resistance R11 that one end is connected with resistance R4, the other end is connected with the Same Name of Ends of telefault L3 forms.The emitter of institute triode VT4 is all connected with suction pump trigger control circuit 75 with the Same Name of Ends of telefault L3.
Described suction pump trigger control circuit 75 is by triode VT5, bidirectional thyristor D9, N pole is connected with the base stage of triode VT5 after resistance R13, the diode D8 that P pole is then connected with the Same Name of Ends of telefault L3 after electric capacity C8, N pole is connected with the P pole of diode D8, the voltage stabilizing diode D7 that P pole is connected with the emitter of triode VT4, the electric capacity C5 be in parallel with voltage stabilizing diode D7, positive pole is connected with the P pole of voltage stabilizing diode D7, the electric capacity C6 that negative pole is connected with the first anode of bidirectional thyristor D9, one end is connected with the P pole of voltage stabilizing diode D7, the resistance R12 that the other end is connected with the base of triode VT5, and positive pole is connected with the emitter of triode VT5, negative pole forms with the electric capacity C7 that the first anode of bidirectional thyristor D9 is connected with second anode simultaneously.The control pole of described bidirectional thyristor D9 is connected with the collector of triode VT5, and the emitter of triode VT5 is connected with the P pole of voltage stabilizing diode D7 and the P pole of diode D5 simultaneously.The FB pin of flip chip U1 and the emitter of triode VT5 then form the second output terminal of signal, and this second output terminal is then connected with the signal input part of suction pump 64.When suction pump trigger control circuit 75 electric after then start suction pump 64.
As mentioned above, just well the present invention can be realized.
Claims (9)
1. one kind based on the thermostatically controlled engine performance TT&C system of engine water temperature, comprise tested power platform, single-chip microcomputer (1), be arranged on the tested engine on tested power platform, the measurement and control instrument (3) be connected with single-chip microcomputer (1) and electric machine controller (2), the accelerator drive instrument (4) be connected with measurement and control instrument (3), the engine motor oil constant temperature system (5) be connected with tested engine, engine water temperature thermostatic control system (6), engine fuel constant temperature system (7) and intelligent fuel consumption detection system (8), and input end is connected with tested engine, the power test system (9) that output terminal is then connected with single-chip microcomputer (1) forms, described engine motor oil constant temperature system (5), engine water temperature thermostatic control system (6), engine fuel constant temperature system (7) and intelligent fuel consumption detection system (8) are all connected with single-chip microcomputer (1), and described measurement and control instrument (3) is also connected with tested engine, described engine water temperature thermostatic control system (6) comprises engine water tank (61), temperature sensor (62), solenoid valve (63), suction pump (64), refrigeratory (65), filtrator (66), triggering system (67), rising pipe (68) and water inlet pipe (69), the water inlet of this refrigeratory (65) is connected with engine water tank (61) by rising pipe (68), its water delivering orifice is then connected with engine water tank (61) by water inlet pipe (69), solenoid valve (63) is then arranged on rising pipe (68), suction pump (64) is then arranged on rising pipe (68) and goes up and be positioned between solenoid valve (63) and refrigeratory (65), filtrator (66) is arranged on water inlet pipe (69), temperature sensor (62) is then arranged on engine water tank (61) bottom, described solenoid valve (63), suction pump (64) is all connected with triggering system (67), it is characterized in that, between triggering system (67) and temperature sensor (62), be also provided with processes temperature signal system (60),
Described processes temperature signal system (60) is by triode VT6, triode VT7, triode VT8, diode D12, positive pole is connected with the N pole of diode D12 after resistance R14 through resistance R15 in turn, the electric capacity C9 that negative pole is then connected with the base stage of triode VT8 after resistance R22, positive pole is connected with the tie point of resistance R15 with resistance R14, negative pole is then in turn through electric capacity C8 that resistance R19 is connected with the P pole of diode D12 after resistance R20, one end is connected with the negative pole of electric capacity C8, the resistance R16 that the other end is then connected with the positive pole of electric capacity C9 after resistance R17, N pole is connected with the base stage of triode VT7, P pole is the diode D10 of ground connection after resistance R18 then, N pole is connected with the P pole of diode D10, the diode D11 that P pole is then connected with the P pole of diode D12 after resistance R21, one end is connected with the P pole of diode D12, the resistance R23 that the other end is connected with the emitter of triode VT8, positive pole is connected with the P pole of diode D12 after resistance R24, while negative pole is connected with the P pole of diode D11, the electric capacity C10 of ground connection forms, the collector of described triode VT6 is connected with the positive pole of electric capacity C8, emitter is connected with the collector of triode VT7, base stage is connected with the negative pole of electric capacity C8, the base stage of described triode VT7 is connected with the positive pole of electric capacity C9, emitter is connected with the tie point of resistance R20 with resistance R19.
2. one according to claim 1 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described triggering system (67) is by transformer T, be arranged on the telefault L1 on the former limit of transformer T, be arranged on telefault L2 and the telefault L3 of transformer secondary, the front end signal treatment circuit (71) be connected with telefault L1, the intermediate treatment circuit (72) be connected with telefault L2, the sensor-triggered control circuit (73) be connected with intermediate treatment circuit (72), the signal trimming circuit (74) be connected with telefault L3, and form with the suction pump trigger control circuit (75) that signal trimming circuit (74) is connected with sensor-triggered control circuit (73) simultaneously.
3. one according to claim 2 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described front end signal treatment circuit (71) comprises fuse R1, diode bridge rectifier U, electric capacity C1, diode D2, and voltage stabilizing diode D1; One end of fuse R1 is connected with an input end of diode bridge rectifier U, the other end is as a signal input part of circuit, the positive pole of electric capacity C1 is connected with two output terminals of diode bridge rectifier U respectively with negative pole, and the N pole of voltage stabilizing diode D1 is connected with the positive pole of electric capacity C1, its P pole is then connected with the negative pole of electric capacity C1 after diode D2; The Same Name of Ends of described telefault L1 is connected with the positive pole of electric capacity C1, its non-same polarity is connected with the negative pole of electric capacity C1.
4. one according to claim 3 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described intermediate treatment circuit (72) is by triode VT1, unidirectional thyristor D4, N pole is connected with the N pole of unidirectional thyristor D4, the diode D3 that P pole is then connected with the non-same polarity of telefault L2, the resistance R2 be in parallel with diode D3, positive pole is connected with the N pole of diode D3, the electric capacity C2 that negative pole is then connected with the P pole of unidirectional thyristor D4, one end is connected with the N pole of unidirectional thyristor D4, the inductance L 4 that the other end is connected with the emitter of triode VT1, one end is connected with the control pole of unidirectional thyristor D4, the resistance R3 that the other end is connected with the base stage of triode VT1, and one end is connected with the base stage of triode VT1, the resistance R4 that the other end is connected with signal trimming circuit (74) forms, the P pole of described unidirectional thyristor D4 is connected with the Same Name of Ends of telefault L2, and the emitter and collector of triode VT1 is all connected with sensor-triggered control circuit (73), base stage is connected with the P pole of unidirectional thyristor D4.
5. one according to claim 4 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described sensor-triggered control circuit (73) is by flip chip U1, triode VT2, triode VT3, one end is connected with the collector of triode VT1, the resistance R5 that the other end is connected with the VDD pin of flip chip U1, positive pole is connected with the collector of triode VT1, the electric capacity C3 that negative pole is then connected with the FB pin of flip chip U1 after relay K, N pole is connected with the base stage of triode VT3 after resistance R7, the diode D5 that P pole is connected with tie point and the suction pump trigger control circuit (75) of relay K with electric capacity C3 simultaneously, one end is connected with the CS pin of flip chip U1, the resistance R8 that the other end is connected with the P pole of diode D5, and the resistance R6 be serially connected between the base stage of triode VT2 and emitter forms, the BD pin of described flip chip U1 is connected with the emitter of triode VT1, GND pin ground connection, FB pin are connected with the collector of triode VT3, the base stage of triode VT2 is connected with the BD pin of flip chip U1, collector is connected with the SW pin of flip chip U1, emitter is connected with the emitter of triode VT3, the emitter of triode VT3 also after the normally opened contact K-1 of relay K as signal one output terminal.
6. one according to claim 5 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described signal trimming circuit (74) is by triode VT4, P pole is connected with the non-same polarity of telefault L3, the diode D6 that N pole is connected with the base stage of triode VT4, positive pole is connected with the N pole of diode D6, the electric capacity C4 that negative pole is connected with the Same Name of Ends of telefault L3, the resistance R9 be in parallel with electric capacity C4, one end is connected with the collector of triode VT4, the resistance R10 that the other end is connected with the Same Name of Ends of telefault L3, and one end is connected with resistance R4, the resistance R11 that the other end is connected with the Same Name of Ends of telefault L3 forms, the emitter of institute triode VT4 is all connected with suction pump trigger control circuit (75) with the Same Name of Ends of telefault L3.
7. one according to claim 6 is based on the thermostatically controlled engine performance TT&C system of engine water temperature, it is characterized in that: described suction pump trigger control circuit (75) is by triode VT5, bidirectional thyristor D9, N pole is connected with the base stage of triode VT5 after resistance R13, the diode D8 that P pole is then connected with the Same Name of Ends of telefault L3 after electric capacity C8, N pole is connected with the P pole of diode D8, the voltage stabilizing diode D7 that P pole is connected with the emitter of triode VT4, the electric capacity C5 be in parallel with voltage stabilizing diode D7, positive pole is connected with the P pole of voltage stabilizing diode D7, the electric capacity C6 that negative pole is connected with the first anode of bidirectional thyristor D9, one end is connected with the P pole of voltage stabilizing diode D7, the resistance R12 that the other end is connected with the base of triode VT5, and positive pole is connected with the emitter of triode VT5, negative pole forms with the electric capacity C7 that the first anode of bidirectional thyristor D9 is connected with second anode simultaneously, the control pole of described bidirectional thyristor D9 is connected with the collector of triode VT5, and the emitter of triode VT5 is connected with the P pole of voltage stabilizing diode D7 and the P pole of diode D5 simultaneously.
8. the one according to claim 5,6 or 7, based on the thermostatically controlled engine performance TT&C system of engine water temperature, is characterized in that: described flip chip U1 is ACT364 integrated chip.
9. the one according to any one of claim 1 ~ 7, based on the thermostatically controlled engine performance TT&C system of engine water temperature, is characterized in that: described temperature sensor (62) is BD-WZP-PT100 type temperature sensor.
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| CN201510172305.5A CN104849059A (en) | 2015-04-13 | 2015-04-13 | Engine comprehensive performance measuring and controlling system based on thermostatic control of engine coolant temperature |
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Application publication date: 20150819 |