CN202649245U - Simulation load box for dual clutch transmission control unit - Google Patents
Simulation load box for dual clutch transmission control unit Download PDFInfo
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- CN202649245U CN202649245U CN 201220210191 CN201220210191U CN202649245U CN 202649245 U CN202649245 U CN 202649245U CN 201220210191 CN201220210191 CN 201220210191 CN 201220210191 U CN201220210191 U CN 201220210191U CN 202649245 U CN202649245 U CN 202649245U
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- tcu
- load box
- clutch
- control unit
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Abstract
The utility model relates to a simulation load box for a dual clutch transmission control unit. The load box is respectively connected with a detected TCU and a host computer. The load box comprises a box body, and a TCU power-on management circuit, a switch signal simulation circuit, a displacement sensor signal simulation circuit and a clutch motion simulation motor which are arranged inside the box body. The TCU power-on management circuit, the switch signal simulation circuit, the displacement sensor signal simulation circuit and the clutch motion simulation motor are all connected with the detected TCU. The TCU power-on management circuit is connected with a battery. The load box can be used for providing input signals and simulation loads, needed by a test, to the detected TCU. The load box is also in connection and communication with the host computer via a CAN bus. Compared with the prior art, the simulation load box is small in size and low in cost, is convenient to carry, etc.
Description
Technical field
The utility model relates to a kind of automatic gearbox of vehicles ECU (Electrical Control Unit) hardware testing device, especially relates to a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box.
Background technology
Automatic gear-box ECU (Electrical Control Unit) (Transmission Control Unit, TCU) is one of core component of double-clutch automatic gearbox (Dual Clutch Transmission, DCT), is the carrier of its control strategy.The twin axle 5 Quick-drying type electrical DC T of patented claim unit's independent development, its actuating motor more (comprising two clutch motors and three shift motors) and Electric Machine Control adopt PWM control, the frequent switching of power tube can cause electric current (voltage) rate of change larger, produce larger electromagnetic interference (EMI), increase is also had higher requirement to its antijamming capability simultaneously to the electromagnetic disturbance of vehicle-mounted other electron devices.Therefore, the TCU that develops for above-mentioned 5 Quick-drying type DCT must take into full account Electro Magnetic Compatibility (EMC), and carries out necessary EMC test.
The EMC test is the necessary links of the hardware development of electronic control unit for vehicles, is intended to verify its harassing and wrecking and interference free performance.When TCU hardware EMC performance indoor test, for reflecting more truly the working condition of actual TCU, must its simulation load box of exploitation.Provide input sense analogue signal and output driving load by this simulation load box to TCU hardware, in conjunction with the upper PC of remote control that can also can monitor with the TCU real-time communication its duty, consist of TCU hardware emc testing platform again.
Find through the literature search to prior art, China Patent Publication No. be CN 201508393U patent disclosure the test platform of the main parts Electro Magnetic Compatibility of a kind of electric automobile, this scheme can be measured electromagnetic radiation and the Immunity Performance of future products in the electric automobile development.But this scheme is mainly for the main parts size emc testing of electric automobile, and comprises electric automobile real vehicle analogue means and UUT mounting platform.This test platform volume is large, function is complicated, is not for orthodox car automatic gear-box ECU (Electrical Control Unit) (TCU) emc testing.Particularly can't finish especially for the TCU emc testing of double-clutch automatic gearbox.And not yet have at present the technical solutions of the utility model of employing to develop double-clutch automatic gearbox TCU simulation load box.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of cost double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box low, simple to operate, easy to carry for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box, this load box is connected with host computer with tested TCU respectively, the TCU that described load box comprises casing and is located at box house power on management circuit, switching signal mimic channel, displacement transducer signal mimic channel and clutch coupling start simulated machine, power on management circuit, switching signal mimic channel, displacement transducer signal mimic channel and clutch coupling start simulated machine of described TCU all is connected with tested TCU, and the described TCU management circuit that powers on connects battery.
The described TCU management circuit that powers on comprises fuse, power supply electrifying display unit, the independent control module of TCU and key switch control module, described fuse one end connects battery by rocker type switch, the other end connects respectively power supply electrifying display unit, the independent control module of TCU and key switch control module, and the independent control module of described TCU is connected with tested TCU with the key switch control module and is connected.
The independent control module of described TCU comprises the TCU lock-up relay, and described key switch control module comprises electrical relay and key switch.
Described switching signal mimic channel is formed in parallel by lever switch, key switch and brake switch, and described lever switch, key switch are connected with brake switch with tested TCU and are connected.
Described displacement transducer signal mimic channel comprises 1/3 gear displacement sensor, 2/4 gear displacement sensor, 5 gear displacement sensors, R gear displacement sensor, No. 1 clutch displacement sensor, No. 2 clutch displacement sensors, accelerator pedal displacement transducer and throttle opening displacement transducers in parallel successively.
Described displacement transducer signal mimic channel also is parallel with two displacement motor sensors, is provided with change-over switch in the described displacement transducer signal mimic channel.
Described clutch coupling start simulated machine is the direct current generator with displacement transducer, described displacement transducer is connected with the output shaft of clutch coupling start simulated machine, described displacement transducer is rotating potentiometer, on the described clutch coupling start simulated machine two limit switches is installed.
Described casing is provided with load box front panel and the load box rear panel of distribute a plurality of interfaces and LED light.
Described load box rear panel is provided with the CAN communication interface, and described load box is connected with upper machine communication with the CAN bus by the CAN communication interface.
Compared with prior art, the utlity model has following advantage:
1) for the EMC performance test of dry type pairing device automatic transmission TCU hardware, use this simulation load box can make the indoor hardware testing of EMC of TCU simple and easy and feasible, can save the EMC testing cost;
2) whole simulation load box integrated level is high, weight and volume is less, is easy to carry simultaneously, easy to use and with low cost.
Description of drawings
Fig. 1 is the structural representation of the utility model load box;
Fig. 2 is the principle schematic that the utility model load box is used for the EMC test;
Fig. 3 is TCU that the utility model the is implemented management circuit schematic diagram that powers on;
Fig. 4 is pin and the key switch signal imitation circuit theory diagrams that the utility model is implemented;
Fig. 5 is the displacement transducer signal mimic channel schematic diagram that the utility model is implemented;
Fig. 6 is clutch coupling start and the gearshift simulated machine electrical schematic diagram that the utility model is implemented;
Fig. 7 is the load box front panel layout that the utility model is implemented;
Fig. 8 is the load box backplane layout figure that the utility model is implemented;
Fig. 9 is the ipc monitor interface that the utility model is implemented.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
Shown in Fig. 1-2, a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box, this load box is connected by harness-integrated and tested TCU5, load box comprises casing, and the TCU that is located at box house power on management circuit 1, switching signal mimic channel 2, displacement transducer signal mimic channel 3 and clutch coupling start simulated machine 4, power on management circuit 1, switching signal mimic channel 2, displacement transducer signal mimic channel 3 and clutch coupling start simulated machine 4 of TCU all is connected with tested TCU5, and the TCU management circuit 1 that powers on connects battery.After powering on by accumulator, when carrying out the EMC test, this load box provides the necessary input signal of test (comprising the sinusoidal engine rotational speed signal of analog signals, switching value signal, vehicle speed pulse signal and differential type) and the needed load of TCU hardware driving circuit for TCU5 to be measured, and detects load and TCU driving status signal.In addition, simulation load box can pass through CAN fiber termination box and CAN bus and host computer 6 communications, based on the CCP agreement, uses the CANape instrument, can in host computer 000 software, monitor and record coherent signal and data, analyze working condition and the Electro Magnetic Compatibility thereof of TCU and from the interface, in time find fault.
The TCU that the utility model is implemented powers on management circuit as shown in Figure 3; comprise fuse, power supply electrifying display circuit, the independent control circuit of TCU and key switch control circuit; the 12V power supply is at first by in the ship type interrupteur SW 1 access load system; and seal in 30A fuse F1; protection bulk supply system; in the situation of battery main switch closure, can show whether battery powers on by LED; and TCU powers on by two-way relay K 1, K2 parallel operation; one the tunnel is the key switch control circuit, and another road is the independent control circuit of TCU.After key powers on, TCU powers at once, and light LED and demonstrate current TCU power-up state, the control of another route TCU output signal, thereby prevent from causing the system failure because the maloperation key switch makes the TCU outage, guarantee simultaneously to have no progeny in the key pass, TCU can continue to finish behind the command adapted thereto and self check, after without any mistake, reset, again auto-breaking.
Table 1
The switching signal mimic channel that the utility model is implemented as shown in Figure 4, the pin switching signal comprises P (shelves of parking), R (reverse gear shift), N (neutral) signal, signal type is the 12V digital signal, is 0 level at shelves, by independent switch control.Comprise that also M+ and M-signal are the 12V digital signal, by the combination definition D shelves, M shelves of the two and manual increase and decrease shelves, its array mode is, signal M+ be 1 and M-be 1 o'clock be D gear (forward gear); Signal M+ be 0 and M-be 0 o'clock to be M gear (manually forward gear); Signal M+ be 0 and M-be 1 o'clock be that M increases gear (manually increasing gear); Signal M+ be 1 and M-be 0 o'clock be that M subtracts gear (manually subtracting gear); Transform switch by D-M on circuit, three switches of M+ switch and M-switch are realized, specify as shown in table 1.For more real simulation control lever interlocking mechanically, adopt the key switch of four 6 keys, respectively corresponding P position switch, R position switch, N position switch and D-M switch.During operation, switch closure of each only possibility, other three switches must be opened.M+ and M-signal are the flip-over type pulse switch signals, consider the actual manually mode of operation of pin, adopt the simulation of self-resetting type single-pole double-throw (SPDT) toggle switch.Except above-mentioned pin switch, the switching signal mimic channel also comprises key switch S9 and brake switch S8, and the pin signal is for effectively low, and other is effectively high.
The displacement transducer signal mimic channel that the utility model is implemented as shown in Figure 5, the displacement transducer simulating signal comprises the travel position of clutch coupling, gear, accelerator pedal, throttle opening, mainly comprises No. 1 travel of clutch signal, No. 2 travel of clutch signals, 1/3 gear stroke signal, 2/4 gear stroke signal, 5 gear stroke signals, R gear stroke signal, accelerator pedal signal, throttle opening signal.Above-mentioned signal is produced by No. 1 clutch displacement sensor U4 in parallel successively, No. 2 clutch displacement sensor U5,1/3 gear displacement sensor U1,2/4 gear displacement sensor U2,5 gear displacement sensor U3, R gear displacement sensor U6, accelerator pedal displacement transducer U8 and throttle opening displacement transducer U7, above displacement transducer is simulated realization by potentiometer, have 8 tunnel simulating signals, be 0～5V simulating signal.Because simulation load box inside installed two motors with real displacement sensor U9, U10, so the displacement transducer signal mimic channel is provided with one and switches switch S 10, S11, can select to gather real sensor or analog sensor.Wherein the 5V power supply of displacement transducer is powered by tested TCU, and the actual signal scope is 0～5V signal.
The clutch coupling start simulated machine that the utility model is implemented in order to simulate the real load of TCU, and can be realized Electric Machine Control as shown in Figure 6, and two direct current generator M1, M2 with displacement transducer have been installed in TCU simulation load box inside.Wherein displacement transducer adopts rotating potentiometer, the range of potentiometer is 270 degree electric displacement angles, out of control in order to prevent motor, during installation about with the displacement transducer center positions of 110 degree two limit switches are installed, take No. 1 clutch motor as example, output voltage S13 is for just, S14 is for negative, the motor forward, when motor oversteps the extreme limit stroke (110 degree), will run into limit switch, the limit switch action links to each other the S14-2 end with the anode of diode D13, thereby the diode reverse cut-off, motor stalling.If make the motor return must add direction voltage, namely S14 is being for just, and S13 is for negative, this moment diode D13 forward conduction, motor reversal.Use real electrical machinery can effectively simulate the real load of TCU.
The fictitious load box body front panel layout that the utility model is implemented as shown in Figure 7, front panel mainly comprises key starting switch ST, P gear, R gear, N gear and D-M gear key switch, key switch ON, brake switch, manual gear M+ switch, manual gear M-switch, clutch coupling 1,2 stroke change-over switches and two are reserved switch.Also comprise No. 1 travel of clutch signal, No. 2 travel of clutch signals, 1/3 gear stroke signal, 2/4 gear stroke signal, 5 gear stroke signals, R gear stroke signal, accelerator pedal signal, throttle opening Signal Regulation knobs and two reservation adjusting knobs.12 LED lamps show respectively that 12V power supply electrifying, key power on, TCU powers on, braking, P gear at gear, R gear at gear, the N gear state at gear, the conversion of D-M gear, M+, M-.The tach signal output port that also has in addition engine speed input, vehicle speed signal, signal ground and reservation.
The simulation load box cabinet rear panel layout that the utility model is implemented as shown in Figure 8, rear panel mainly comprises+input of 12V power supply and+the 12V power ground, power switch, clutch coupling 1 motor change-over switch, clutch coupling 2 motor change-over switches, comprise that also CAN communication interface, SPI communication interface, 25 interface connectors 1 and 25 interface connectors, 2,25 interface connectors 1 and 25 interface connectors 2 are by interface and two harness-integrated linking to each other.Comprise in addition 12 signal output ports, be clutch motor 1 output terminals A, B, clutch motor 2 output terminals A, B, 13 gear motor output end A, B, 24 gear motor output end A, B, 5 gear motor output end A, B, R gear motor output end A, B.Wherein gear motor signal output part A is corresponding with the clutch motor output terminals A, is outside output, and gear motor signal output part B is corresponding with clutch motor output terminal B, is the internal load output of support type built-in motor.
The simulation load box that the utility model is implemented based on the CCP agreement, by CAN bus and tested TCU communication, carries out measurement and the demarcation of tested TCU parameter based on the upper computer software monitoring interface of CANape as shown in Figure 9.Set up the host computer interface based on the CANape instrument, wherein the first hurdle is the measurement of 8 digital quantities; The second hurdle is 8 position stroke signals and motor current signal collection; Third column is the fault diagnosis result of input signal, if 0 non-fault, being 1 has fault; The 4th hurdle is the measurement of the control signal of motor; The 5th hurdle is for demarcating variable, comprises the operational mode of motor and pid control parameter etc.By above-mentioned interface, can realize monitoring and demarcation to TCU to be measured, record and preservation TCU each signal in test are analyzed its working condition and Electro Magnetic Compatibility and in time find fault from the interfaces.
Claims (9)
1. double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box, this load box is connected with host computer with tested TCU respectively, it is characterized in that, the TCU that described load box comprises casing and is located at box house power on management circuit, switching signal mimic channel, displacement transducer signal mimic channel and clutch coupling start simulated machine, power on management circuit, switching signal mimic channel, displacement transducer signal mimic channel and clutch coupling start simulated machine of described TCU all is connected with tested TCU, and the described TCU management circuit that powers on connects battery.
2. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 1, it is characterized in that, the described TCU management circuit that powers on comprises fuse, power supply electrifying display unit, the independent control module of TCU and key switch control module, described fuse one end connects battery by rocker type switch, the other end connects respectively power supply electrifying display unit, the independent control module of TCU and key switch control module, and the independent control module of described TCU is connected with tested TCU with the key switch control module and is connected.
3. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 2, it is characterized in that, the independent control module of described TCU comprises the TCU lock-up relay, and described key switch control module comprises electrical relay and key switch.
4. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 1, it is characterized in that, described switching signal mimic channel is formed in parallel by lever switch, key switch and brake switch, and described lever switch, key switch are connected with brake switch with tested TCU and are connected.
5. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 1, it is characterized in that described displacement transducer signal mimic channel comprises 1/3 gear displacement sensor, 2/4 gear displacement sensor, 5 gear displacement sensors, R gear displacement sensor, No. 1 clutch displacement sensor, No. 2 clutch displacement sensors, accelerator pedal displacement transducer and throttle opening displacement transducers in parallel successively.
6. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 5, it is characterized in that, described displacement transducer signal mimic channel also is parallel with two displacement motor sensors, is provided with change-over switch in the described displacement transducer signal mimic channel.
7. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 1, it is characterized in that, described clutch coupling start simulated machine is the direct current generator with displacement transducer, described displacement transducer is connected with the output shaft of clutch coupling start simulated machine, described displacement transducer is rotating potentiometer, on the described clutch coupling start simulated machine two limit switches is installed.
8. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 1 is characterized in that, described casing is provided with load box front panel and the load box rear panel of distribute a plurality of interfaces and LED light.
9. a kind of double-clutch automatic gearbox ECU (Electrical Control Unit) simulation load box according to claim 8, it is characterized in that, described load box rear panel is provided with the CAN communication interface, and described load box is connected with upper machine communication with the CAN bus by the CAN communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220210191 CN202649245U (en) | 2012-05-10 | 2012-05-10 | Simulation load box for dual clutch transmission control unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220210191 CN202649245U (en) | 2012-05-10 | 2012-05-10 | Simulation load box for dual clutch transmission control unit |
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| CN202649245U true CN202649245U (en) | 2013-01-02 |
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| CN 201220210191 Expired - Fee Related CN202649245U (en) | 2012-05-10 | 2012-05-10 | Simulation load box for dual clutch transmission control unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346102A (en) * | 2017-08-22 | 2017-11-14 | 南京越博电驱动系统有限公司 | A kind of major-minor single-chip microcomputer entire car controller |
| CN108388239A (en) * | 2018-04-25 | 2018-08-10 | 中国重汽集团济南动力有限公司 | A kind of device of test engine electronic control unit function |
| CN109030994A (en) * | 2018-06-29 | 2018-12-18 | 北京经纬恒润科技有限公司 | A kind of test method and system |
| CN113917248A (en) * | 2021-08-31 | 2022-01-11 | 江铃汽车股份有限公司 | Radiation anti-interference test method, equipment, storage medium and TCU test system |
-
2012
- 2012-05-10 CN CN 201220210191 patent/CN202649245U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346102A (en) * | 2017-08-22 | 2017-11-14 | 南京越博电驱动系统有限公司 | A kind of major-minor single-chip microcomputer entire car controller |
| CN108388239A (en) * | 2018-04-25 | 2018-08-10 | 中国重汽集团济南动力有限公司 | A kind of device of test engine electronic control unit function |
| CN109030994A (en) * | 2018-06-29 | 2018-12-18 | 北京经纬恒润科技有限公司 | A kind of test method and system |
| CN113917248A (en) * | 2021-08-31 | 2022-01-11 | 江铃汽车股份有限公司 | Radiation anti-interference test method, equipment, storage medium and TCU test system |
| CN113917248B (en) * | 2021-08-31 | 2024-02-06 | 江铃汽车股份有限公司 | Radiation anti-interference test method, device, storage medium and TCU test system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |