CN1238213C - Power output changing-over method and control system for power assembly of mixed powder car - Google Patents
Power output changing-over method and control system for power assembly of mixed powder car Download PDFInfo
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Abstract
The present invention relates to a power output switching method and a control system of a power assembly of a mixed powder car, which belongs to the field of a control technology of a power assembly of a mixed powder car. The power output switching method and the control system can carry out the power output switch of the power assembly of the mixed powder car and the energy management of the system, and judges according to a state conversion boundary value and a data collection result. The power assembly respectively switches to recovering and braking energy, an accumulator is charged by an engine, and states of electric drive, mixed drive, engine drive and the like are processed in phase. The control system comprises a main chip, a switch quantity regulating circuit, an analogue quantity regulating circuit, a pulse signal regulating circuit, a CAN bus interface, a DA converting circuit, a driving and isolating circuit and the like, wherein the circuits are respectively connected with the main chip. Output torque of a power source can be quickly and smoothly switched in large scale; compared with the common engine power, the method and the control system have an energy recovering function, the energy utilization efficiency is increased, and finally, the fuel economy of the whole car is increased.
Description
Technical field
The invention belongs to hybrid power car dynamic assembly control technology field, particularly a kind of takeoff output changing method and Multi-Energy Dynamic Assemble Control System of hybrid power car dynamic assembly.
Background technology
Hybrid power car has become the focus of following automotive technology research with advantages such as its low energy consumption, anti-emission carburetors.The research of the power assembly control system of mixed power electric car still is in the starting stage at home, does not still have mature technology and occurs.The multipotency source control system of hybrid power car is a comparatively complicated system, need Coordination Treatment as the driving engine of propulsion source and the relation between the battery electric system, the combination that simultaneously also will be as required provide required signal of gear shift control and control change speed gear box power-transfer clutch with AMT (electronic controlling mechanical type change-speed box) control system communication with separate, numerous sensor signals has also strengthened the complexity of multipotency source control system.In addition, there is the strong power system of more than 300 volts on the hybrid vehicle, when the multipotency source control system must break down in system, cuts off the supply of forceful electric power, guarantee the safety of each parts of automobile.The power drive system of existing hybrid power car generally adopts planet speed change mechanism and motor to constitute stepless change or adopts CVT (toric transmission), and its cost is higher.Adopt the speed-changing mechanism of MT (hand-operated transmission) pattern, can not realize autoshift, strengthened the labour intensity of chaufeur.
Summary of the invention
For the optimization takeoff output of realizing the hybrid power car power system switches cost-cutting.Reduce the car quantity discharged, reduce oil consumption, the invention provides a kind of takeoff output changing method of hybrid power car dynamic assembly, it is characterized in that this method comprises the steps:
1) utilize power assembly control system to gather SOC (the State of Charge of acceleration pedal switch and aperture, brake pedal switch and aperture, engine speed, motor speed, the speed of a motor vehicle, storage battery, charge condition), voltage and current, and the failure message of each control unit in the hybrid power car system;
2) judged whether fault according to above-mentioned failure message, carried out following processing if any fault: put motor throttle=0%, put engine throttle=0%, close ISG (starting the generating all-in-one), send power down request and show failure message to switching arrangement;
3) as collecting the gearshift request of AMT, power assembly control system reduces the accelerator open degree of driving engine, makes gear shift make AMT input shaft and output shaft reach synchronization gently and to motor transmission rotating speed control command;
4) power assembly control system calculates the torque demand of chaufeur according to the speed of a motor vehicle and acceleration pedal aperture;
5) determine the state exchange value, promptly according to the total external characteristics linear interpolation calculation engine maximum torque of driving engine, the minimal torque value of closing according to the torque characteristics linear interpolation calculation engine of driving engine 20% throttle, and with the speed of a motor vehicle under the motor rated power independent drive as minimum vehicle speed value;
6) make the following judgment according to the upper lower limit value of described state exchange value, storage battery SOC and the brake pedal on off state that collects,
If the brake pedal switch connection, power assembly control system reclaims braking energy; If brake pedal switch access failure, and current storage battery SOC value is then carried out driving engine to battery charge less than the SOC lower limit, up to storage battery SOC value greater than the SOC higher limit; If current storage battery SOC value is greater than the lower limit of SOC, then
Judge whether process of charging finishes, if do not finish, whether the torque demand of then judging chaufeur is greater than the maximum engine torque value, and torque demand then carries out combination drive greater than the maximum engine torque value as described, otherwise carries out driving engine to battery charge;
If process of charging finishes, so
If the torque demand of chaufeur is less than the minimal torque value of tail-off or the speed of a motor vehicle minimum vehicle speed value less than tail-off, then power assembly control system carries out motorized motions; Otherwise
If the torque demand of chaufeur is less than the maximum engine torque value but greater than the minimal torque requirements of tail-off and the speed of a motor vehicle minimum vehicle speed value greater than tail-off, then power assembly control system carries out engine drive;
If the torque demand of chaufeur is greater than the maximum engine torque value, then power assembly control system carries out combination drive;
Return step 1) after the completion status judgment processing.
The 3rd) reduce the accelerator open degree to 8% of driving engine in the gearshift procedure control method described in the step.
The scope of described storage battery SOC lower limit is (40～50) %; The scope of storage battery SOC higher limit is (60～70) %.
The 6th) hybrid driving method described in the step is for allowing driving engine with 100% throttle work, and the part that torque demand exceeds the maximum engine torque value is provided by motor.
Described driving engine is that engine throttle increases by 15% accelerator open degree and is used for generating on the basis of the cooresponding accelerator open degree of torque demand to the method for battery charge.
When reclaiming braking energy, the generating throttle of motor is 20%.
The present invention also provides a kind of hybrid power car power assembly control system, it is characterized in that: this power assembly control system comprises the master chip of storage control program, gather the AMT control system with the input port bonded assembly of described master chip, switching arrangement, ignition lock, acceleration pedal, the switching value modulate circuit of brake pedal on-off signal, gather acceleration pedal with the A/D mouth bonded assembly of master chip, brake pedal, electronically controlled throttle valve, the analog quantity modulate circuit of battery management system analog signal, gather driving engine with PAI (input pulse input capture or pulse totalizer) mouthful of bonded assembly of master chip, motor, the impulse singla modulate circuit of AMT control system impulse singla, power port bonded assembly electric power management circuit with master chip, clock line bonded assembly clock circuit with master chip, PWM (pulse duration modulation output) mouthful of bonded assembly power drive with master chip, drive buffer circuit with the delivery port bonded assembly of master chip, SPI mouth bonded assembly DA change-over circuit with master chip, SCI mouth difference bonded assembly serial communication change-over circuit and AMT (electronic controlling mechanical type change-speed box) with master chip, CAN controller bonded assembly CAN bus driving circuits with master chip, with the BDM (background debugging) of master chip mouthful of bonded assembly debugging interface, and with described switching value modulate circuit, the analog quantity modulate circuit, impulse singla modulate circuit bonded assembly antijamming blackout.
Described master chip adopts 16 micro controller system MC68HC12DG128A.
Adopt the takeoff output changing method and the control system thereof of hybrid power car dynamic assembly provided by the invention to make the quantity discharged that can reduce hybrid power car greatly, reduce the oil consumption of car.
Description of drawings
Fig. 1 is a hybrid power car power assembly system scheme drawing.
Fig. 2 is the power assembly control system functional block diagram.
Fig. 3 is the control policy diagram of circuit of power assembly control system.
Fig. 4 is data acquisition flow figure.
Fig. 5 is the fault processing flow chart.
Fig. 6 is the gearshift procedure control flow chart.
Fig. 7 reclaims the braking energy diagram of circuit.
Fig. 8 is that driving engine is to the battery charge diagram of circuit.
Fig. 9 is the combination drive diagram of circuit.
Figure 10 is the motorized motions diagram of circuit.
Figure 11 is the engine drive diagram of circuit.
The specific embodiment
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that to purpose of the present invention, feature and advantage are carried out more deep understanding.
Hybrid power car power assembly system scheme drawing as shown in Figure 1, ignition lock 1, gear shifting handle 2, acceleration pedal 3, brake pedal 4, air-conditioning 7, switching arrangement 19, AMT (electronic controlling mechanical type change-speed box) control system 11, battery management system 10, electric machine control system 9, engine management system 8, electronically controlled throttle valve 6, ISG13 have light current with power assembly control system 5 and are connected.In addition, there is light current to be connected between engine management system 8 and the driving engine 15; There is forceful electric power to be connected between electric machine control system 9 and motor/generator 17, storage battery 12, the switching arrangement 19; Battery management system 10 has forceful electric power to be connected with storage battery 12; AMT control system 11 has light current to be connected with AMT18, power-transfer clutch 16; ISG13 has forceful electric power to be connected with storage battery 12; Between driving engine 15 and the power-transfer clutch 16 is mechanical connection; Between electric generator/electric motor 17 and the AMT18 mechanical connection is arranged; Between AMT18 and the wheel mechanical connection is arranged; Above annexation has constituted hybrid drive train.
As shown in Figure 2, the master chip model is 16 micro controller system MC68HC12DG128A of motorola inc, its integrated level height, need not to carry out any outside expansion, only need to add that on the basis of master chip signal conditioning circuit and output driving circuit etc. can constitute complete control system, this has just reduced number of elements and line number effectively, has improved system reliability, reduced volume, be convenient to install.Isolated drive circuit adopts integrated low-side driver circuitry, has self-diagnostic function, the reliability height.On-off signal from electric machine control system, AMT control system, switching arrangement, acceleration pedal, brake pedal, ignition lock is connected with the I/O mouth of master chip 41 through switching value modulate circuit 37, switching value modulate circuit 37 adopt with on the RC filter circuit that draws, can accept dissimilar switching value input forms, and have the maximum voltage attributive function, have better flexibility and safety.Analog signal from acceleration pedal, brake pedal, electronically controlled throttle valve, battery management system is connected with the A/D mouth of master chip 41 through analog quantity modulate circuit 36, analog quantity modulate circuit 36 adopts the RC filter circuit of attributive function with voltage, has good anti-interference resistance and safety.Impulse singla from engine management system, electric machine control system, AMT control system is connected with the PAI (input pulse input capture or pulse totalizer) of master chip 41 through impulse singla modulate circuit 35, impulse singla modulate circuit 35 adopts photoelectricity isolation method, good in anti-interference performance.Debugging interface 38 is connected with BDM (background debugging) mouth of master chip 41, electric power management circuit 39 is connected with the power port of master chip 41, adopt the CAN bus driving circuits 40 of 82C250 chip to be connected with the CAN controller of master chip 41, adopt the serial communication change-over circuit 43 of MAX232 chip to be connected with a SCI mouth of master chip 41, serial communication change-over circuit 43 can be connected with PC with demarcation, can carry out condition monitoring and parameter calibration, another SCI mouth of master chip 41 is used for being connected with AMT, and clock circuit 44 is connected with the clock line of master chip 41.Adopt the DA change-over circuit 46 of MAX5250 chip to be connected with the SPI mouth of master chip 41; the delivery port that adopts MOTOROLA to possess driving buffer circuit 47 master chips 41 of the high Smart MOS smart power device MC33385 of self-protection function and integrated level connects; the power drive 48 that adopts MOTOROLA to possess the high Smart MOS H bridge smart power device MC33186 of self-protection function and integrated level is connected with PWM (pulse duration modulation output) mouth of master chip 41; power driving circuit adopts integrated H bridge chip for driving; dependable performance; good in anti-interference performance, and have diagnosis interface.Antijamming blackout 49 is connected with switching value modulate circuit 37, analog quantity modulate circuit 36, impulse singla modulate circuit 35.
As shown in Figure 3, master chip 41 receives collection and the conversion (step 60) of carrying out signal behind the quantity of state incoming signal of power assembly system.The quantity of state of described power assembly system comprises the failure message of each control unit in acceleration pedal aperture, acceleration pedal switch, brake pedal aperture, brake pedal switch, engine speed, motor speed, the speed of a motor vehicle, storage battery SOC, battery tension, battery current and the system etc.
Data acquisition and shift process are as shown in Figure 4, gather acceleration pedal on-off signal (step 101) by switching value modulate circuit 37 successively, gather acceleration pedal aperture signal (step 102) by analog quantity modulate circuit 36, gather brake pedal on-off signal (step 103) by switching value modulate circuit 37, gather brake pedal aperture signal (step 104) by analog quantity modulate circuit 36, gather throttle opening signal (step 105) by analog quantity modulate circuit 36, gather vehicle speed signal by impulse singla modulate circuit 35, gather engine rotational speed signal by impulse singla modulate circuit 35, gather motor speed signal (step 106) by impulse singla modulate circuit 35, gather the battery tension signal by analog quantity modulate circuit 36, battery current signal and storage battery SOC signal (step 107), gather electric machine control system by switching value modulate circuit 37, battery management system, the AMT control system, the breakdown signal (step 108) of switching arrangement, for making data acquisition reliable, 10ms (step 109) is gathered in above datacycle, returns main flow (step 110).
According to the treated signal that collects, judge at first whether the parts in the system have fault (step 61), if system breaks down (step 61), then turn to exception handles (step 62).Troubleshooting process as shown in Figure 5, putting the motor throttle for electric machine control system 9 transmission signals by DA change-over circuit 46 successively is 0% (step 151), putting driving engine 15 throttles by power drive 48 is 0% (step 152), send signal at stop ISG13 (step 153) for ISG (startup-generating-body machine) 13 by isolated drive circuit 47, send power down request (step 154) to switching arrangement 19 by isolated drive circuit 47.
If system does not have fault (step 61), program judges then whether AMT18 has gear shift request (step 63), if AMT18 has gear shift request (step 63), then master chip 41 is carried out gearshift procedure control (step 64).The gearshift procedure control flow as shown in Figure 6, power assembly control system 5 is gathered the signal of AMT control system 11 by SCI serial communication interface 143, collect the engine throttle opening of AMT control, and motor speed synchronizing signal (step 201), make motor 17 carry out the rotating speed control command for electric machine control system 9 fire switch amount signals by isolated drive circuit 47 and make AMT input shaft and output shaft reach synchronization (step 202), power assembly control system 5 makes gear shift not have impact (step 203) gently according to the accelerator open degree that the engine throttle opening that collects AMT control reduces driving engine 8.Judge then whether AMT18 has cancelled gear shift request (step 204), if AMT18 does not cancel gear shift request (step 204), then continue step 201, step 202, step 203,, then return main flow (step 205) if AMT18 cancels gear shift request (step 204).If AMT18 does not have gear shift request (step 63), then master chip 41 is according to acceleration pedal aperture and vehicle speed signal calculated torque demand (step 65) through collecting, master chip 41 is rated condition conversion cut off value (step 66) then, and the state exchange cut off value comprises: the minimum vehicle speed value of tail-off, the minimal torque value of tail-off and maximum engine torque value.Power assembly control system switches state exchange cut off value, acceleration pedal aperture, the speed of a motor vehicle, brake pedal switch, storage battery SOC value as control multipotency driving source assembly state foundation.Master chip 41 is judged brake pedal on-off signal (step 67) after rated condition conversion cut off value, if brake pedal is stepped on (step 67), then master chip 41 is carried out braking energy and reclaimed (step 68).
Reclaim the braking energy flow process as shown in Figure 7, at first putting driving engine 15 accelerator open degrees by power drive 48 is 0% (step 301), send signal for engine management system 8 by isolated drive circuit 47 and make driving engine 15 oil-breaks (step 302), judge that then whether the speed of a motor vehicle is greater than 5km/h (step 303), if the speed of a motor vehicle is greater than 5km/h (step 303), putting the motor throttle for electric machine control system 9 transmission signals by DA change-over circuit 46 is 20%, and send signals for electric machine control system 9 by isolated drive circuit 47 and put motor 17 and be generating state (step 305), if the speed of a motor vehicle is less than 5km/h (step 303), putting the motor throttle for electric machine control system 9 transmission signals by DA change-over circuit 46 is 0%, and send signal for electric machine control system 9 by isolated drive circuit 47 and put motor 17 for idling conditions (step 304), turn back to data acquisition (step 306) then; If brake pedal is not stepped on (step 67), master chip 41 continues to judge that storage battery SOC is whether less than the lower limit (step 69) of SOC, if the SOC value of battery that collects by analog quantity modulate circuit 36 is less than the lower limit (step 69) of SOC, then master chip 41 is carried out 12 chargings (step 70) of 15 pairs of storage batterys of driving engines.
15 pairs of storage battery 12 charging flows of driving engine as shown in Figure 8, judge at first whether driving engine 15 has started (step 401), if driving engine 15 is not activated (step 401), then master chip 41 sends signal with start the engine 15 (step 402) by power drive 48 to ISG13, if driving engine 15 has started (step 401), then master chip 41 sends in conjunction with the power-transfer clutch order with in conjunction with power-transfer clutch (step 403) for AMT control system 11 by power drive 48, put engine throttle then on the basis of acceleration pedal aperture, increasing by 10% (step 404), then master chip 41 send signals for electric machine controller 9 by DA change-over circuit 46 to put the motor throttle be 10%, and put motor 17 and be generating state (step 405), the sign that will charge is at last put 1 (step 406), if program then judges that storage battery SOC is whether greater than the higher limit (step 407) of SOC, if storage battery SOC is greater than the higher limit (step 407) of SOC, then the program reset charging indicates (step 408), withdraw from 15 pairs of storage battery 12 process of charging of driving engine and return data collection (step 409), if storage battery SOC is less than the higher limit (step 407) of SOC, then withdraw from 15 pairs of storage batterys of driving engine, 12 process of charging (step 409), return data collection (step 60) again.If storage battery SOC is greater than the lower limit (step 69) of SOC, program judges that whether the charging sign is effectively to judge whether process of charging finishes (step 71), if process of charging does not finish (step 71), then program judges that whether the torque demand of chaufeur is greater than the maximum engine torque value, be that program judges that whether the chaufeur torque demand is in combination drive zone (step 72), as the torque demand of chaufeur less than the maximum engine torque value, then the chaufeur torque demand is not in combination drive zone (step 72), then need to continue to storage battery 12 chargings, turn to 15 pairs of storage batterys of driving engine, 12 charging flows (step 70), as the torque demand of chaufeur greater than the maximum engine torque value, then the chaufeur torque demand is in combination drive zone (step 72), then procedure turn combination drive treating process (step 77).
The combination drive flow process as shown in Figure 9, judge at first whether driving engine 15 has started (step 501), if driving engine 15 is not activated (step 501), then master chip 41 starts ISG13 with start the engine 15 (step 502) by power drive 48, if driving engine 15 has started (step 501), then master chip 41 sends in conjunction with the power-transfer clutch order with in conjunction with power-transfer clutch (step 503) for AMT control system 11 by power drive 48, then program send signals for engine management system 8 by power drive 48 to put driving engine 15 throttles be 100% (step 504), then calculate the motor throttle, and put motor 17 and be driving condition (step 505), withdraw from and return data collection (step 506) after finishing combination drive control.If process of charging finishes (step 71), whether the torque demand that program is then judged chaufeur is less than the minimal torque requirements of tail-off and the speed of a motor vehicle minimum vehicle speed value less than tail-off, judge promptly whether the chaufeur torque demand is in motorized motions zone (step 73), if torque demand is in motorized motions zone (step 73), program changes motorized motions treating process (step 76) over to.
The motorized motions flow process as shown in figure 10.Motorized motions is at first sent signal for engine management system 8 by isolated drive circuit 47 and makes driving engine 15 oil-breaks (step 601), then send in conjunction with the power-transfer clutch order with in conjunction with power-transfer clutch (step 602) for AMT control system 11 by power drive 48, calculate motor accelerator open degree (step 603) then, and send signal for electric machine control system 9 by isolated drive circuit 47 and put motor 17 for driving condition (step 604), withdraw from motorized motions state and return data collection (step 506) again.If the chaufeur torque demand is not in the motorized motions zone, the torque demand that is chaufeur is greater than the minimal torque requirements of tail-off or the speed of a motor vehicle minimum vehicle speed value (step 73) greater than tail-off, program continues to judge whether the chaufeur torque demand is in the engine drive zone, promptly whether the torque demand of chaufeur less than maximum engine torque value (step 75), if the chaufeur torque demand is not in the engine drive zone, the torque demand that is chaufeur is greater than maximum engine torque value (step 75), then carry out combination drive handler (step 77), then return data collection (step 60).If the chaufeur torque demand is in the engine drive zone, promptly the torque demand of chaufeur is then carried out engine drive handler (step 76) less than maximum engine torque value (step 75).
The engine drive handler as shown in figure 11, judge at first whether driving engine 15 has started (step 801), if driving engine 15 is not activated (step 801), then master chip 41 starts ISG13 with start the engine 15 (step 802) by power drive 48, if driving engine 15 has started (step 801), then master chip 41 sends signal for electric machine controller 9 by power drive 48, make motor 17 be in idling conditions (step 803), master chip 41 sends in conjunction with the power-transfer clutch order with in conjunction with power-transfer clutch (step 804) for AMT control system 11 by power drive 48 then, follow program calculation engine throttle opening, and send signals for engine management system 8 by power drive 48 driving engine 15 throttles to be set, to withdraw from engine drive and return data collection (step 806) again.
Claims (8)
1. the takeoff output changing method of hybrid power car dynamic assembly is characterized in that this method comprises the steps:
1) utilize power assembly control system to gather acceleration pedal switch and aperture, brake pedal switch and aperture, engine speed, motor speed, the speed of a motor vehicle, the SOC of storage battery, voltage and current, and the failure message of each control unit in the hybrid power car system;
2) judged whether fault according to above-mentioned failure message, carried out following processing if any fault: put motor throttle=0%, put engine throttle=0%, close ISG, send power down request and show failure message to switching arrangement;
3) as collecting the gearshift request of AMT, power assembly control system reduces the accelerator open degree of driving engine, makes gear shift make AMT input shaft and output shaft reach synchronization gently and to motor transmission rotating speed control command;
4) power assembly control system calculates the torque demand of chaufeur according to the speed of a motor vehicle and acceleration pedal aperture;
5) determine the state exchange value, promptly according to the total external characteristics linear interpolation calculation engine maximum torque of driving engine, the minimal torque value of closing according to the torque characteristics linear interpolation calculation engine of driving engine 20% throttle, and with the speed of a motor vehicle under the motor rated power independent drive as minimum vehicle speed value;
6) make the following judgment according to the upper lower limit value of described state exchange value, storage battery SOC and the brake pedal on off state that collects,
If the brake pedal switch connection, power assembly control system reclaims braking energy; If brake pedal switch access failure, and current storage battery SOC value is then carried out driving engine to battery charge less than the SOC lower limit, up to storage battery SOC value greater than the SOC higher limit; If current storage battery SOC value is greater than the lower limit of SOC, then
Judge whether process of charging finishes, if do not finish, whether the torque demand of then judging chaufeur is greater than the maximum engine torque value, and torque demand then carries out combination drive greater than the maximum engine torque value as described, otherwise carries out driving engine to battery charge;
If process of charging finishes, so
If the torque demand of chaufeur is less than the minimal torque value of tail-off or the speed of a motor vehicle minimum vehicle speed value less than tail-off, then power assembly control system carries out motorized motions; Otherwise
If the torque demand of chaufeur is less than the maximum engine torque value but greater than the minimal torque requirements of tail-off and the speed of a motor vehicle minimum vehicle speed value greater than tail-off, then power assembly control system carries out engine drive;
If the torque demand of chaufeur is greater than the maximum engine torque value, then power assembly control system carries out combination drive;
Return step 1) after the completion status judgment processing.
2. method according to claim 1 is characterized in that: the accelerator open degree to 8% that the 3rd) reduces driving engine in the gearshift procedure control method described in the step.
3. method according to claim 1 is characterized in that: the scope of described storage battery SOC lower limit is (40～50) %; The scope of storage battery SOC higher limit is (60～70) %.
4. method according to claim 1 is characterized in that: the 6th) hybrid driving method described in the step is for allowing driving engine with 100% throttle work, and the part that torque demand exceeds the maximum engine torque value is provided by motor.
5. method according to claim 1 is characterized in that: described driving engine is that engine throttle increases by 15% accelerator open degree and is used for generating on the basis of the cooresponding accelerator open degree of torque demand to the method for battery charge.
6. method according to claim 1 is characterized in that: when reclaiming braking energy, the generating throttle of motor is 20%.
7. realize the hybrid power car power assembly control system of the described method of claim 1, it is characterized in that: this power assembly control system comprises the master chip (41) of storage control program, gather the AMT control system with the input port bonded assembly of described master chip, switching arrangement, ignition lock, acceleration pedal, the switching value modulate circuit (37) of brake pedal on-off signal, gather acceleration pedal with the A/D mouth bonded assembly of master chip, brake pedal, electronically controlled throttle valve, the analog quantity modulate circuit (36) of battery management system analog signal, gather driving engine with the PAI mouth bonded assembly of master chip, motor, the impulse singla modulate circuit (35) of AMT control system impulse singla, power port bonded assembly electric power management circuit (39) with master chip, clock line bonded assembly clock circuit (44) with master chip, PWM mouth bonded assembly power drive (48) with master chip, drive buffer circuit (47) with the delivery port bonded assembly of master chip, SPI mouth bonded assembly DA change-over circuit (46) with master chip, SCI mouth difference bonded assembly serial communication change-over circuit (43) and AMT with master chip, CAN controller bonded assembly CAN bus driving circuits (40) with master chip, with the BDM mouth bonded assembly debugging interface (38) of master chip, and with described switching value modulate circuit (37), analog quantity modulate circuit (36), impulse singla modulate circuit (35) bonded assembly antijamming blackout (49).
8. power assembly control system according to claim 7 is characterized in that: described master chip adopts 16 micro controller system MC68HC12DG128A.
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| CN101774372A (en) * | 2010-02-24 | 2010-07-14 | 清华大学 | Driving anti-skid control system of hybrid electric vehicle and control method thereof |
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