CN204296852U - A kind of Electric Power Steering Control System of Automobile - Google Patents
A kind of Electric Power Steering Control System of Automobile Download PDFInfo
- Publication number
- CN204296852U CN204296852U CN201420810015.XU CN201420810015U CN204296852U CN 204296852 U CN204296852 U CN 204296852U CN 201420810015 U CN201420810015 U CN 201420810015U CN 204296852 U CN204296852 U CN 204296852U
- Authority
- CN
- China
- Prior art keywords
- controller
- motor
- processing module
- sensor
- assist motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of Electric Power Steering Control System of Automobile, at least comprise sensor, controller and actuator, described sensor detects vehicle signal, and transfer to controller and process, controller controls actuator and performs power-assisted steering, described actuator comprises EPS FET relay driving module, motor drive module, FET relay and assist motor, the output of described controller drives FET relay by EPS FET relay driving module, and the output of controller drives assist motor by motor drive module.The utility model adopts FET relay to substituted for existing electromagnetic relay, avoids the deficiency of the easy ablation of electromagnetic relay in the past, then the service life of delay controller, improves the reliability of system, security.
Description
Technical field
The utility model relates to electric automobile field, more specifically, relates to a kind of Electric Power Steering Control System of Automobile.
Background technology
Traditional electric boosting steering system is by sensor, and controller, executing agency's (comprising actuating motor), mechanical transmission mechanism etc. form.The signal that wherein sensor detects mainly comprises the signals such as trouble light level, supply voltage, engine speed, the speed of a motor vehicle, torque sensor output voltage values, motor working current.These signals, through corresponding processing of circuit, then pass to the ECU of system, the control that output order realizes system to executing agency after ECU process.
Existing executing agency comprises actuating motor and electromagnetic relay, in actual use, more easily occurs electromagnetic relay ablation thus causes whole ECU to scrap.Secondly, in conventional electric servo steering system, controller is what to separate with mechanical assembly, at motor due to overheated and when burning out, its controller also stands intact, and this is because temperature sensor is arranged in controller, and controller cannot detect that motor specific works is in state.
Utility model content
The utility model is for overcoming at least one defect (deficiency) described in above-mentioned prior art, a kind of Electric Power Steering Control System of Automobile is provided, adopt this system can effectively avoid due to electromagnetic relay ablation thus cause whole ECU to scrap, improving the reliability of system, security.
For solving the problems of the technologies described above, the technical solution of the utility model is as follows:
A kind of Electric Power Steering Control System of Automobile, at least comprise sensor, controller and actuator, described sensor detects vehicle signal, and transfer to controller and process, controller controls actuator and performs power-assisted steering, described actuator comprises EPS FET relay driving module, motor drive module, FET relay and assist motor, the output of described controller drives FET relay by EPS FET relay driving module, the output of controller drives assist motor by motor drive module, wherein contain two subsystems in FET relay driving module, i.e. power supply relay and motor phase relay, and traditional E PS relay only has power supply relay.
The utility model adopts FET relay to substituted for existing electromagnetic relay, avoids the deficiency of the easy ablation of electromagnetic relay in the past, then the service life of delay controller, improves the reliability of system, security.
Preferably, described controller and assist motor are integrated in same cavity; The circuit board of controller is imbedded in the housing of assist motor; And sensor wire harness is at assist motor enclosure interior cabling, the both positive and negative polarity of assist motor is connected with controller circuit board.
Preferably, described assist motor is connected with controller circuit board by conductiving metal strip.
In the present case, controller and assist motor are integrated, make its compact conformation, simplify, reduce the connector of controller housing and relevant wire harness, reduce cost, improve antijamming capability; Secondly, because controller and assist motor integrate, directly can measure motor and controller temperature, improve accuracy and the reliability of whole system protection, the reliability of whole system (motor and controller) and security are improved greatly.Traditional controller is owing to separating with motor, and controller internal temperature and motor temperature are distinguished very large, if do not protected, just easily burns motor, if not protection accurately or by mistake protection, just easily cause power-assisted to diminish, client complains.
Adopt power supply relay and motor phase relay an EPS simultaneously, and owing to adopting motor phase relay and controller circuit board and assist motor to concentrate in a cavity, after the wire harness that assist motor is connected with controller is modified to conductiving metal strip, the electric motor short circuit that can effectively prevent motor harness from causing due to external force broken skin and the electric motor locking occurred, the security incident turning to inefficacy caused, improves the security of system greatly.
Due to controller is integrated in the housing of assist motor in the utility model, the circuit board of controller is directly embedded in the housing of assist motor, decreases dimensional packaged circuit board housing in existing controller, reduce cost.The controller of traditional E PS is separated with mechanical tubing string, motor, power line, motor lines, pickup wire, car load holding wire all will be connected into controller respectively, and when controller circuit board being embedded in the housing of assist motor, sensor wire harness can be able to be welded direct on circuit board enclosure interior cabling (sensor is in EPS reducer shell), and the both positive and negative polarity of assist motor directly can be connected with the circuit board of controller by screw.Such layout, make assist motor and sensor wire harness therefore in housing, reduce the short circuit owing to causing wire harness broken skin to cause in packed and transported process and in use procedure due to external force and cause electric motor locking and turn to inefficacy, decrease the interference of motor to outside, decrease the connector of motor harness and sensor wire harness, save cost.
Preferably, the both positive and negative polarity of described assist motor is connected with controller circuit board by copper bar, and is positioned at assist motor housing, and controller directly can measure motor temperature.The electric motor locking because the unexpected broken skin of wire causes the short circuit of motor both positive and negative polarity to cause can be improved, and the security incident can not rotating steering wheel caused, improve the security of whole system.
Preferably, described sensor comprises the First Speed sensor for detecting the speed of a motor vehicle, for detecting the second speed sensor of engine speed, for detecting the torque sensor of automobile dtc signal, for detecting position sensor and the system power source voltage detection module of brake pedal signal.
Preferably, described controller comprises GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module and central processing unit;
Described GES processing module connects the output of First Speed sensor, described dtc signal processing module connects the output of torque sensor, described engine rotational speed signal processing module connects the output of second speed sensor, and described brake pedal signal processing module connects the output of position sensor; The output of described GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module is all connected with central processing unit.
Preferably, described system also comprises the current detection module for detecting assist motor, the output termination central processing unit of described current detection module.
Preferably, described system also comprises the warning memory module stored for fault alarm, the input termination central processing unit of described warning memory module.
Compared with prior art, the beneficial effects of the utility model are:
1) this system detects the GES of automobile, dtc signal, engine rotational speed signal and brake pedal signal etc. by sensor, and by the controller (ECU) of these signals input EPS.When turning to and do not receive brake pedal signal, system is according to normal mode power-assisted; When turning to and receive brake pedal signal, system then adjusts power steering.
2) adopting power supply relay and motor phase relay to control (traditional E PS only has power supply relay) in controller, causing security incident by increasing electric motor locking that motor phase relay prevents motor power-supply wire short circuit from causing.
3) adopt novel FET to substitute traditional electromagnetic type relay, adopt New Type Field effect pipe to have switching speed fast, accurately and reliably, the advantages such as electromagnetic interference is weak.
4) by motor and controller are integrated in same cavity; make controller interior circuit board temperature suitable with motor temperature; thus learn motor temperature and circuit board temperature by the temperature sensor in controller simultaneously; make simultaneously protection controller and motor due to overheated and lost efficacy; thus the electric motor locking preventing burn-down of electric motor and occur, and cause security incident.
Accompanying drawing explanation
Fig. 1 is functional-block diagram of the present utility model.
Fig. 2 is GES processing module circuit diagram.
Fig. 3 is dtc signal processing module circuit diagram.
Fig. 4 is engine rotational speed signal processing module circuit diagram.
Fig. 5 is brake pedal processing module circuit diagram.
Fig. 6 is system power source voltage monitoring module circuit diagram.
Fig. 7 is EPS assist motor driver module and current of electric monitoring module circuit diagram.
Fig. 8 is FET relay driving module circuit diagram.
Fig. 9 is diagnosis code memory module circuit diagram.
Figure 10 is fault diagnosis code sending module circuit diagram.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product;
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
The utility model general is equipped with the operational stability of electric boosting steering system EPS vehicle when skid steer to improve, by changing the control mode of original electromagnetic relay, improve motor and systematic function (comprising reliability, security), reduce costs.
As Fig. 1, a kind of Electric Power Steering Control System of Automobile, at least comprise sensor, controller and actuator, described sensor detects vehicle signal, and transfer to controller and process, controller controls actuator and performs power-assisted steering, described actuator comprises EPS FET relay driving module, motor drive module, FET relay and assist motor, the output of described controller drives FET relay by EPS FET relay driving module, and the output of controller drives assist motor by motor drive module.
The sensor is mainly for detection of the signal such as trouble light level, energising power voltage, engine speed, the speed of a motor vehicle, brake signal, torque sensor output voltage values, motor working current of automobile;
Namely sensor mainly comprises the First Speed sensor for detecting the speed of a motor vehicle, for detecting the second speed sensor of engine speed, for detecting the torque sensor of automobile dtc signal, for detecting position sensor and the system power source voltage detection module of brake pedal signal.
Controller comprises GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module and central processing unit; Described GES processing module connects the output of First Speed sensor, described dtc signal processing module connects the output of torque sensor, described engine rotational speed signal processing module connects the output of second speed sensor, and described brake pedal signal processing module connects the output of position sensor; The output of described GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module is all connected with central processing unit.
After each sensor detects respective signal respectively, be input to and be input to central processing unit again after corresponding processing module carries out signal transacting and process, output signal is delivered to respectively EPS FET relay driving module, motor drive module and current of electric detection module and warning memory module.
The signal that sensor detects mainly comprises:
GES is a frequency signal, and mainly judge the signal of the speed of a motor vehicle, frequency is larger, and the speed of a motor vehicle is higher.
Dtc signal is a voltage signal, and mainly judge the size of moment on steering wheel, voltage change is larger, and moment is larger.
Engine rotational speed signal is a frequency signal, and mainly judge the size of engine speed, frequency is larger, and rotating speed is larger.
Brake pedal signal is a switching signal, mainly judges whether automobile is damped condition, and when stepping on brake pedal, switch connection, represents and enter on-position.
Concrete structure and the principle of each module are described as follows:
1, central authorities' process:
Adopt 32 High Performance SCM ARM single-chip microcomputer LPC2129, accept the sensor signal in primal coordination CPU and coordinate order, controlling steer motor and FET relay, there is good assist characteristic.
2, GES processing module:
GES is a pseudo-sine signal, GES processing module is exactly that amplitude, frequency that sensor is exported all are transformed into the square-wave signal that single-chip microcomputer can identify, so that single-chip microcomputer counts square-wave signal thus obtains wheel speed at the pseudo-sine signal of change.GES processing module as shown in Figure 2, filtering is carried out through the RC low pass filter be made up of R1 and C5 from vehicle speed sensor pseudo-sine signal out, in order to prevent from exporting excessive voltage signal, damage is caused to process chip, the in the end amplitude limiter circuit of signal through being made up of R5 and D1, pseudo-sine signal can be converted into the square-wave signal of same frequency, what output to single-chip microcomputer catches a mouthful P0.11.
3, dtc signal processing module:
Dtc signal is an analog signal, and dtc signal processing module is exactly utilize the A/D mouth of single-chip microcomputer to gather dtc signal, judges to handle torque whether in the power-assisted region that EPS control program is preset, if, then perform Power assisted control.As shown in Figure 3, NJ1 and NJ2 is two torque signals to dtc signal processing module, and+5V and AGND is power supply and the ground of torque sensor respectively.Respectively after the dividing potential drop and filtering of R6, R7 and C2 and R8, R9 and C3, again respectively through the emitter follower of operational amplifier U3 and U4 composition, signal AIN4 and AIN5 finally exported meets 10 A/D mouth P0.28 and P0.29 of single-chip microcomputer, thus collects torque signal.
4, engine rotational speed signal processing module
Engine rotational speed signal mainly detect engine whether start and engine start time speed.It is drawn by instrument board, and be a square-wave signal, amplitude is about 14V, and engine rotational speed signal processing module, as Fig. 4, carries out filtering through the RC low pass filter be made up of R2 and C6.Cause damage in order to prevent from exporting excessive voltage signal to process chip, last signal, through the amplitude limiter circuit be made up of R6 and D21, can be converted into the acceptable square-wave signal of single-chip microcomputer, output to and catch a mouthful P0.10.
5, brake pedal signal processing module
Brake pedal signal is mainly used for detecting automobile and whether is in damped condition, and brake pedal signal comes from Brake lamp, and brake pedal signal processing module as shown in Figure 5.Once driver steps on brake pedal, then Brake lamp is bright, now produce a high level signal, be brake pedal signal, carry out opening triode Q9 after filtering, amplitude limit through Zener diode D51 and R111, C54 again, the brake pedal signal TABAN obtained receives the middle fracture (also can be used as I/O mouth) of single-chip microcomputer.
6, system power source voltage and current of electric monitoring module
Battery tension is R39, R41 by another road of R33, R40() after dividing potential drop, the bleeder circuit formed with R35, R34 is made up of U3A and U3B comparator U3() compare, through another road of D13 and R42(D14 and R43) output to IO port P0.8, P0.9 of ARM after amplitude limit, C22 is filter capacitor.
7, EPS assist motor driver module and current of electric detection module
EPS assist motor driver module is mainly used to drive the assist motor in EPS, to reach the object of power-assisted.EPS assist motor driver module as shown in Figure 7.Select the full-bridge chip VNH2SP30 of single encapsulation, there is the conventional trouble-saving function such as current detecting and open-circuited load, short circuit load, excess temperature, overvoltage, under-voltage, overcurrent, hardware circuit is simplified greatly, has saved the cost of system.VBAT connects battery, and motor is connected between OUTA and OUTB, INA and INB can be used to control motor drive direction.When INA=0, during INB=1, motor rotates forward; When INA=1, during INB=0, motor reversal; When INA=0, INB=0 or INA=1, during INB=1, motor braking.By the size of current regulating the dutycycle of PWM port signal to regulate motor, CS port is used for detecting the size of current of motor, realizes carrying out closed-loop control to electric current, makes control electric current consistent with target current; ENA and ENB is diagnostic signal, and being high level when motor fault-free, is low level when motor has fault, has effectively monitored the state of motor.IRFR3707Z is the N-channel MOS pipe of a low on-resistance, is used for realizing reverse power connection protection.
8, EPS FET relay driving module:
EPS FET relay driving module is mainly used to drive the FET relay in EPS, whether exports power-assisted to control motor and is switched to manual steering gear.FET relay drive circuit as shown in Figure 8.Select IRFR3707Z as the Q4 in its driving chip and Fig. 8, connector J5 receives FET relay.Signal P1.19_IN_LHQ receives the control output pin of processor, and R48 is current-limiting resistance.When P1.19_IN_LHQ is high level, Q3 conducting, and R49 is now equivalent to ground connection, then Q4 also not conducting, FET relay does not work; When P1.19_IN_LHQ is low level, Q3 ends, and R49 is now equivalent to receive 12V, then Q4 conducting, and FET relay is started working-switched on power.FET relay output end is also by a feedback network, be made up of R50, R51 and D16, the high level voltage due to FET relay OUT1 place is 12V, can not directly link on ARM7 control chip, therefore, after dividing potential drop through voltage-stabiliser tube D16 by voltage stabilization at 3.3V.Its duty can be fed back to single-chip microcomputer with signal P0.23_LHQFD, to detect the duty of FET relay.
9, warning memory module comprises diagnosis code memory module and fault diagnosis code sending module
Wherein diagnose code memory module as shown in Figure 9, CAT1025 is a reset chip, and its major function makes chip reset by button S2, but its inside is integrated with the Serial E of 2K position
2pROM, memory adopts the I2C EBI of 400KHz, so native system uses it to store fault diagnosis code, is conducive to reducing system cost.R23, R24, R26, R27 are shunt resistance, and R22 is anti-interference resistance.
When systems axiol-ogy is to when having fault to occur, on instrument board EPS alarm lamp flicker, simultaneously by fault diagnosis code stored in E2PROM, to point out driver.
As shown in Figure 10, the main level conversion using serial communication chip SP3232E chip to carry out serial ports, electric capacity C1, C2, C3, C4 are in order to improve system rejection to disturbance performance for fault diagnosis code sending module.When systems axiol-ogy is to when having fault to occur, EPS alarm lamp will glimmer, and after prompting driver, is sent on computer by failure diagnostic apparatus by fault diagnosis code by serial ports, the reason occurred with Judging fault.Deagnostic communication treatment circuit is made up of fault diagnosis code transtation mission circuit and fault diagnosis code memory circuit.
In the present embodiment, also described controller and assist motor are integrated in same cavity; The circuit board of controller is imbedded in the housing of assist motor; And sensor wire harness is at assist motor enclosure interior cabling, the both positive and negative polarity of assist motor is connected with controller circuit board, and described assist motor is connected with controller circuit board by conductiving metal strip.
Controller and assist motor are integrated, its compact conformation can be made, simplify, reduce the connector of controller housing and relevant wire harness, reduce cost, improve antijamming capability; Secondly, because controller and assist motor integrate, directly can measure motor and controller temperature, improve accuracy and the reliability of whole system protection, the reliability of whole system (motor and controller) and security are improved greatly.Traditional controller is owing to separating with motor, and controller internal temperature and motor temperature are distinguished very large, if do not protected, just easily burns motor, if not protection accurately or by mistake protection, just easily cause power-assisted to diminish, client complains.
Adopt power supply relay and motor phase relay an EPS simultaneously, and owing to adopting motor phase relay and controller circuit board and assist motor to concentrate in a cavity, after the wire harness that assist motor is connected with controller is modified to conductiving metal strip, the electric motor short circuit that can effectively prevent motor harness from causing due to external force broken skin and the electric motor locking occurred, the security incident turning to inefficacy caused, improves the security of system greatly.
Due to controller is integrated in the housing of assist motor in the utility model, the circuit board of controller is directly embedded in the housing of assist motor, decreases dimensional packaged circuit board housing in existing controller, reduce cost.The controller of traditional E PS is separated with mechanical tubing string, motor, power line, motor lines, pickup wire, car load holding wire all will be connected into controller respectively, and when controller circuit board being embedded in the housing of assist motor, sensor wire harness can be able to be welded direct on circuit board enclosure interior cabling (sensor is in EPS reducer shell), and the both positive and negative polarity of assist motor directly can be connected with the circuit board of controller by screw.Such layout, make assist motor and sensor wire harness therefore in housing, reduce the short circuit owing to causing wire harness broken skin to cause in packed and transported process and in use procedure due to external force and cause electric motor locking and turn to inefficacy, decrease the interference of motor to outside, decrease the connector of motor harness and sensor wire harness, save cost.
The both positive and negative polarity of above-mentioned assist motor is connected with controller circuit board by copper bar, and is positioned at assist motor housing.The electric motor locking because the unexpected broken skin of wire causes the short circuit of motor both positive and negative polarity to cause can be improved, and the security incident can not rotating steering wheel caused, improve the security of whole system.
Again, in the present embodiment, the signal that described controller processes sensor detects, and implement corresponding power steering control strategy according to whether receiving brake pedal signal during motor turning, this control strategy is:
When motor turning and when not receiving brake pedal signal, automobile electric booster steering system is according to normal mode power-assisted; When motor turning and when receiving brake pedal signal, automobile electric booster steering system then adjusts power steering.According to brake pedal signal, power-assisted electric current during braking is adjusted, to obtain the better control stability of vehicle.
Assistant mode when the utility model not only overcomes existing automobile EPS braking in a turn is not suitable for braking in a turn operating mode, and overcomes the easy ablation of electromagnetic relay in the past thus cause the deficiency that whole ECU scraps.
There is certain influence when braking to the control stability of EPS, analyzing on the basis of braking principal stability index in EPS, power-assisted electric current during braking being adjusted, to obtain the better control stability of vehicle.When turning to and do not receive brake pedal signal, system is according to normal mode power-assisted; When turning to and receive brake pedal signal, system then adjusts power steering.
This control system is the electric boosting steering system be simultaneously applicable to tubing string booster type and pinion booster type.
The corresponding same or analogous parts of same or analogous label;
Describe in accompanying drawing position relationship for only for exemplary illustration, the restriction to this patent can not be interpreted as;
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.
Claims (8)
1. an Electric Power Steering Control System of Automobile, at least comprise sensor, controller and actuator, described sensor detects vehicle signal, and transfer to controller and process, controller controls actuator and performs power-assisted steering, it is characterized in that, described actuator comprises EPS FET relay driving module, motor drive module, FET relay and assist motor, the output of described controller drives FET relay by EPS FET relay driving module, and the output of controller drives assist motor by motor drive module.
2. Electric Power Steering Control System of Automobile according to claim 1, is characterized in that, described controller and assist motor are integrated in same cavity; The circuit board of controller is imbedded in the housing of assist motor; And sensor wire harness is at assist motor enclosure interior cabling, the both positive and negative polarity of assist motor is connected with controller circuit board.
3. Electric Power Steering Control System of Automobile according to claim 2, is characterized in that, described assist motor is connected with controller circuit board by conductiving metal strip.
4. Electric Power Steering Control System of Automobile according to claim 3, is characterized in that, the both positive and negative polarity of described assist motor is connected with controller circuit board by copper bar, and is positioned at assist motor housing.
5. the Electric Power Steering Control System of Automobile according to any one of Claims 1-4, it is characterized in that, described sensor comprises the First Speed sensor for detecting the speed of a motor vehicle, for detecting the second speed sensor of engine speed, for detecting the torque sensor of automobile dtc signal, for detecting position sensor and the system power source voltage detection module of brake pedal signal.
6. Electric Power Steering Control System of Automobile according to claim 5, it is characterized in that, described controller comprises GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module and central processing unit;
Described GES processing module connects the output of First Speed sensor, described dtc signal processing module connects the output of torque sensor, described engine rotational speed signal processing module connects the output of second speed sensor, and described brake pedal signal processing module connects the output of position sensor; The output of described GES processing module, dtc signal processing module, engine rotational speed signal processing module, brake pedal signal processing module is all connected with central processing unit.
7. Electric Power Steering Control System of Automobile according to claim 6, is characterized in that, described system also comprises the current detection module for detecting assist motor, the output termination central processing unit of described current detection module.
8. Electric Power Steering Control System of Automobile according to claim 6, is characterized in that, described system also comprises the warning memory module stored for fault alarm, the input termination central processing unit of described warning memory module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420810015.XU CN204296852U (en) | 2014-12-20 | 2014-12-20 | A kind of Electric Power Steering Control System of Automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420810015.XU CN204296852U (en) | 2014-12-20 | 2014-12-20 | A kind of Electric Power Steering Control System of Automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204296852U true CN204296852U (en) | 2015-04-29 |
Family
ID=53102419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420810015.XU Active CN204296852U (en) | 2014-12-20 | 2014-12-20 | A kind of Electric Power Steering Control System of Automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204296852U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094115A (en) * | 2015-06-29 | 2015-11-25 | 无锡隆盛科技股份有限公司 | Sensor output circuit for simulation vehicle |
| CN107493047A (en) * | 2017-10-12 | 2017-12-19 | 株洲易力达机电有限公司 | A kind of control of motor drive axle and diagnosis protection system based on EPS |
| CN108407886A (en) * | 2018-03-06 | 2018-08-17 | 北京汽车股份有限公司 | Low-voltage alarm method, device and the vehicle of vehicle electric servo steering system |
| CN109229202A (en) * | 2018-11-12 | 2019-01-18 | 合肥众建翔新能源有限公司 | A kind of new-energy automobile electric power steering apparatus |
-
2014
- 2014-12-20 CN CN201420810015.XU patent/CN204296852U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105094115A (en) * | 2015-06-29 | 2015-11-25 | 无锡隆盛科技股份有限公司 | Sensor output circuit for simulation vehicle |
| CN107493047A (en) * | 2017-10-12 | 2017-12-19 | 株洲易力达机电有限公司 | A kind of control of motor drive axle and diagnosis protection system based on EPS |
| CN108407886A (en) * | 2018-03-06 | 2018-08-17 | 北京汽车股份有限公司 | Low-voltage alarm method, device and the vehicle of vehicle electric servo steering system |
| CN108407886B (en) * | 2018-03-06 | 2020-01-21 | 北京汽车股份有限公司 | Low-voltage alarm method and device for vehicle electric power steering system and vehicle |
| CN109229202A (en) * | 2018-11-12 | 2019-01-18 | 合肥众建翔新能源有限公司 | A kind of new-energy automobile electric power steering apparatus |
| CN109229202B (en) * | 2018-11-12 | 2021-05-25 | 江苏天龙车辆部件有限公司 | Electric power steering device of new energy automobile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104494689A (en) | Automotive electric power steering control system | |
| CN204296852U (en) | A kind of Electric Power Steering Control System of Automobile | |
| CN101549707B (en) | Automobile steering-by-wire redundancy and fault tolerance system and control method | |
| EP4155143A1 (en) | Automobile electronic parking execution controller having double-mcu redundancy design | |
| CN101614277B (en) | Electrical control unit of tractor dynamic power shift gear box | |
| CN104199370A (en) | Automotive motor controller security monitoring circuit and control method thereof | |
| WO2010003366A1 (en) | A high voltage output monitoring device and system of a power battery | |
| CN106004645B (en) | A kind of trailer turns to lamp control system and control method | |
| CN205509478U (en) | Electric automobile dc -to -ac converter protection device | |
| CN109733374B (en) | Controller power supply system | |
| CN202463742U (en) | Automobile body controller | |
| CN106370997A (en) | H-bridge driving circuit detection device and method in EPS system | |
| CN106020078B (en) | A kind of remaining controller circuitry for double remaining turning machines | |
| CN2652762Y (en) | Electric booster turning system | |
| CN108112145B (en) | Multifunctional automobile tail lamp control system based on CAN bus and control method thereof | |
| JP6009665B2 (en) | Electric power steering device | |
| CN113085998A (en) | Steering control circuit board for vehicle | |
| CN202719988U (en) | Combination instrument for automobiles based on imaging TFT | |
| CN110582431A (en) | Current supply unit for a commercial vehicle and method for operating a current supply unit for a commercial vehicle | |
| CN201457064U (en) | Electric control unit of power shifting gear box of tractor | |
| CN208106580U (en) | A kind of long-range throttle handover control system | |
| KR101134838B1 (en) | Method and System for Providing Fail-Safe Algorithm for Electronic Power Steering System by Using Current Sensor | |
| CN2753645Y (en) | Electric power-assisting steering electronic controller | |
| CN202444247U (en) | Electric steering engine output current transient state protecting circuit | |
| CN205239306U (en) | Safe driving auxiliary device of vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210203 Address after: 412000 Room 201, 100 Hangkong Road, Lusong District, Zhuzhou City, Hunan Province Patentee after: Hunan Dongjia Intelligent Technology Co.,Ltd. Address before: 412000 No.100 Hangkong Avenue, dongjiayu high tech park, Lusong District, Zhuzhou City, Hunan Province Patentee before: ZHUZHOU ELITE ELECTRO MECHANICAL Co.,Ltd. |