CN102180192A - Electric steering assisting power control system of new-energy car - Google Patents
Electric steering assisting power control system of new-energy car Download PDFInfo
- Publication number
- CN102180192A CN102180192A CN 201110098473 CN201110098473A CN102180192A CN 102180192 A CN102180192 A CN 102180192A CN 201110098473 CN201110098473 CN 201110098473 CN 201110098473 A CN201110098473 A CN 201110098473A CN 102180192 A CN102180192 A CN 102180192A
- Authority
- CN
- China
- Prior art keywords
- motor
- oil pump
- control unit
- intelligent control
- new
- 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.)
- Pending
Links
Images
Landscapes
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses an electric steering assisting power control system of a new-energy car, which comprises a motor, an oil pump, a car speed collecting module, a motor driving module, an intelligent control unit and a pressure sensor. The car speed collecting module collects a car speed signal and inputs the car speed signal to the intelligent control unit; the pressure sensor induces an oil pump oil pressure signal and inputs the oil pump oil pressure signal to the intelligent control unit; the intelligent control unit outputs a control signal to a motor driving circuit; the motor driving circuit drives the motor to rotate; the motor drives the oil pump to act; and the oil pump outputs acting force to a hydraulic pressure system of the car. A mechanism of the electric steering assisting power control system of the new-energy car is beneficial to overall arrangement, saves manufacturing cost, and improves transmission efficiency; furthermore, the motor is allowed to be a permanent-magnet brushless direct-current motor; the rotational speed of the motor can be maintained to be constant under the control of the driving circuit; the rotational speed of the motor does not change along with the change of the load of the oil pump; and the constant-flow output of the oil pump is ensured. Therefore, the electric steering assisting power control system of the new-energy car has the advantages of high efficiency, small size, light weight, no carbon brush, long service life, simple maintenance and the like.
Description
Technical field
The present invention relates to electromechanics and automatic control technology field, be specifically related to the electric turning booster control system of automobile.
Background technology
The electrically assisted power steering system for motor of existing automobile (Electronic Power Steering, be called for short EPS), its principle of work is: the steering effort that applies on the bearing circle provides corresponding steering torque signal by the steering shaft torque sensor on the torsion bar, ECU (Electrical Control Unit) is according to the vehicle speed signal and the steering torque signal that obtain, calculate the size and Orientation of suitable power steering electric current, then this electric current is passed to steer motor, steer motor is exported corresponding steering torque, and be transferred to output shaft by magnetic clutch, output shaft is passed to steering gear with steering effort, thereby realizes power-steering purpose.
Yet in the prior art, steer motor and magnetic clutch all are integrated on the steering shaft, and its output is stable inadequately; And the use electromagnetic clutch device, make the steering shaft complex structure, also increased the probability of et out of order.
Summary of the invention
The objective of the invention is to address the deficiencies of the prior art, a kind of motorcar electric power steering control system is provided.
Technical scheme of the present invention is as follows: a kind of new-energy automobile electric turning booster control system comprises motor, oil pump, speed data collection module, motor drive module, intelligent control unit and pressure sensor; It is characterized in that, the speed data collection module is gathered vehicle speed signal and is inputed to intelligent control unit, pressure sensor induction oil pump fuel injection pressure signal also inputs to intelligent control unit, intelligent control unit output control signal is given motor-drive circuit, the motor-drive circuit drive motor rotates, the start of driven by motor oil pump, oil pump output action power is given the hydraulic efficiency pressure system of automobile.
Above-mentioned new-energy automobile electric turning booster control system also comprises the CAN bus interface, the control signal of described intelligent control unit is sent to the total wire joint of CAN of automobile.
Described motor is a brushless, permanently excited direct current motor.
The present invention compares with traditional EPS has following beneficial effect: saved magnetic clutch and the steering shaft torque sensor in the conventional art, helped entire arrangement, saved manufacturing cost, improved transmission efficiency; It is brushless, permanently excited direct current motor that structure of the present invention allows motor, motor speed can keep constant under the control of driving circuit, motor speed does not change with the variation of oil pump load, guarantee oil pump constant current output, have advantages such as efficient height, volume is little, in light weight, non-carbonate, the life-span is grown, maintenance is simple thus; Adopt CAN bus output communication interface and whole-control system to realize data exchange, finish Based Intelligent Control and trouble diagnosing.
Description of drawings
Fig. 1 is the formation block diagram of the motorcar electric power steering control system that provides of embodiment.
The specific embodiment
As shown in Figure 1, the motorcar electric power steering control system that provides of present embodiment comprises: intelligent control unit, the speed data collection module that is electrically connected with intelligent control unit, the pressure sensor that is electrically connected with intelligent control unit, reach with intelligent control unit by the motor drive module that is electrically connected, with motor drive module bonded assembly motor, with motor bonded assembly oil pump with intelligent control unit and to press the CAN interface that is electrically connected.The speed data collection module is used to gather the road speed of automobile, is converted into corresponding electric signal, and this vehicle speed signal is inputed to intelligent control unit.Pressure sensor is monitored the oil pressure of oil pump in real time, and the oil pressure data are converted to corresponding electric signal and input to intelligent control unit.Intelligent control unit adopts intelligent chip to realize, its inside is integrated with corresponding data analysis and judges software, after the vehicle speed signal and pressure fuel pump signal analysis judgement of intelligent control unit with reception, generate the motor-driven control signal, and export this control signal and give motor-drive circuit, motor-drive circuit is according to the rotation (comprising direction and rotating speed) of control signal drive motor, the start of driven by motor oil pump, oil pump output action power is given hydraulic efficiency pressure system, gives the steering shaft power-assisted then.According to pressure sensor output size, the control rotating speed of motor makes pressure reach stable.
Wherein, car load speed being gathered, is the moment of torsion output size according to speed of a motor vehicle decision power steering, and according to driving actual conditions, low velocity demand booster torquemoment is little, and the high-speed requirement booster torquemoment is big; Power-assisted oil pump mode of operation is monitored, is to determine the assist motor mode of operation, and oil pressure work balance control is provided, and guarantees that the power steering process is soft comfortable.Pressure fuel pump and motor speed are cover closed loop controls, and initial conditions is to adjust according to the speed of a motor vehicle, and total principle is: the speed of a motor vehicle is low, and pressure is low, and motor speed is just low accordingly.Such as speed of a motor vehicle 20km/h, at this time require the power steering moment of torsion less, so pressure control is just littler, motor speed is little.If speed of a motor vehicle 120km/h, the power steering moment of torsion is bigger, so pressure control is just big, motor speed is big.In addition, the motorcar electric power steering control system that present embodiment provides has the CAN bus interface, is used for realizing data exchange with whole-control system, finishes Based Intelligent Control and trouble diagnosing.
Claims (3)
1. a new-energy automobile electric turning booster control system comprises motor, oil pump, speed data collection module, motor drive module, intelligent control unit and pressure sensor; It is characterized in that, the speed data collection module is gathered vehicle speed signal and is inputed to intelligent control unit, pressure sensor induction oil pump fuel injection pressure signal also inputs to intelligent control unit, intelligent control unit output control signal is given motor-drive circuit, the motor-drive circuit drive motor rotates, the start of driven by motor oil pump, oil pump output action power is given the hydraulic efficiency pressure system of automobile.
2. new-energy automobile electric turning booster control system according to claim 1 is characterized in that, also comprises the CAN bus interface, the control signal of described intelligent control unit is sent to the total wire joint of CAN of automobile.
3. new-energy automobile electric turning booster control system according to claim 1 and 2 is characterized in that described motor is a brushless, permanently excited direct current motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098473 CN102180192A (en) | 2011-04-19 | 2011-04-19 | Electric steering assisting power control system of new-energy car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110098473 CN102180192A (en) | 2011-04-19 | 2011-04-19 | Electric steering assisting power control system of new-energy car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102180192A true CN102180192A (en) | 2011-09-14 |
Family
ID=44566530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110098473 Pending CN102180192A (en) | 2011-04-19 | 2011-04-19 | Electric steering assisting power control system of new-energy car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102180192A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273852A (en) * | 2013-04-25 | 2013-09-04 | 华南农业大学 | Electric field carrier distribution type driving system and control method thereof |
| CN103879444A (en) * | 2014-03-27 | 2014-06-25 | 苏州绿控传动科技有限公司 | Vehicle power-assisted steering system and control method thereof |
| CN105370531A (en) * | 2015-11-13 | 2016-03-02 | 湖南南车时代电动汽车股份有限公司 | Traffic safety system |
| CN107869441A (en) * | 2016-09-28 | 2018-04-03 | 比亚迪股份有限公司 | Motor pump assembly and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749081A (en) * | 2005-10-14 | 2006-03-22 | 上海燃料电池汽车动力***有限公司 | Electric booster turning system of fusing active turning function |
| CN101011980A (en) * | 2007-02-26 | 2007-08-08 | 扬州扬子江柴油机配件厂 | Control device for motor-driven hydraulic power steering system |
| JP2010111265A (en) * | 2008-11-06 | 2010-05-20 | Hitachi Automotive Systems Ltd | Steering control device |
| CN201610164U (en) * | 2010-01-29 | 2010-10-20 | 合肥搬易通科技发展有限公司 | Hydraulic pressure steering energy-conservation device of electric forklift |
| CN202071875U (en) * | 2011-04-19 | 2011-12-14 | 廖志华 | Electric power-assisted steering control system of new energy vehicle |
-
2011
- 2011-04-19 CN CN 201110098473 patent/CN102180192A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1749081A (en) * | 2005-10-14 | 2006-03-22 | 上海燃料电池汽车动力***有限公司 | Electric booster turning system of fusing active turning function |
| CN101011980A (en) * | 2007-02-26 | 2007-08-08 | 扬州扬子江柴油机配件厂 | Control device for motor-driven hydraulic power steering system |
| JP2010111265A (en) * | 2008-11-06 | 2010-05-20 | Hitachi Automotive Systems Ltd | Steering control device |
| CN201610164U (en) * | 2010-01-29 | 2010-10-20 | 合肥搬易通科技发展有限公司 | Hydraulic pressure steering energy-conservation device of electric forklift |
| CN202071875U (en) * | 2011-04-19 | 2011-12-14 | 廖志华 | Electric power-assisted steering control system of new energy vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273852A (en) * | 2013-04-25 | 2013-09-04 | 华南农业大学 | Electric field carrier distribution type driving system and control method thereof |
| CN103273852B (en) * | 2013-04-25 | 2016-04-27 | 华南农业大学 | A kind of electric field carrier distribution type drive system and control method thereof |
| CN103879444A (en) * | 2014-03-27 | 2014-06-25 | 苏州绿控传动科技有限公司 | Vehicle power-assisted steering system and control method thereof |
| CN105370531A (en) * | 2015-11-13 | 2016-03-02 | 湖南南车时代电动汽车股份有限公司 | Traffic safety system |
| CN105370531B (en) * | 2015-11-13 | 2017-10-24 | 湖南南车时代电动汽车股份有限公司 | A kind of driving safety system |
| CN107869441A (en) * | 2016-09-28 | 2018-04-03 | 比亚迪股份有限公司 | Motor pump assembly and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202071875U (en) | Electric power-assisted steering control system of new energy vehicle | |
| CN103496320A (en) | Axle assembly driven by new energy | |
| CN102180192A (en) | Electric steering assisting power control system of new-energy car | |
| CN101531207A (en) | Electric power-assisted steering controller for enhancing automobile stability | |
| CN202508145U (en) | Automobile electric power-assisted steering system | |
| CN105189277B (en) | Manoeuvre device for vehicle | |
| CN210027576U (en) | Electric power steering system for automobile | |
| CN202389448U (en) | Circulative-ball hydraulic power-assisted steering system of motor-driven pump | |
| CN101722863A (en) | Baby motorcycle using solar electricity and provided with motor in front wheel | |
| CN102442344A (en) | Circulating ball motor pump type hydraulic power-assisted steering system | |
| CN207449604U (en) | A kind of electric booster system and the automobile using the system | |
| CN203472532U (en) | New energy drive axle assembly | |
| CN201325480Y (en) | Automobile steering power device | |
| CN105045269A (en) | Automobile navigation control system based on cloud service | |
| CN202358092U (en) | Four-wheel drive and power-assisted steering electric vehicle control device | |
| CN204279606U (en) | Pure electric coach Electro-Hydraulic Power Steering System | |
| CN209795592U (en) | Control module unit of automobile inner side steering power-assisted system | |
| CN207875752U (en) | A kind of electric vehicle and its steering | |
| CN206307103U (en) | A kind of electric boosting steering system | |
| CN202115345U (en) | Transmission system of electric vehicle | |
| CN215399099U (en) | Tricycle | |
| CN201825105U (en) | Electric power-assisted steering device of motor vehicle | |
| CN105539200B (en) | A kind of intelligent power drive device for new-energy automobile | |
| CN206309932U (en) | Electric automobile two speed transmission automatic gearshift | |
| CN205417754U (en) | Auto electric power assisted steering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |