CN207292119U - A kind of two-line voltage synthesis automobile assisted power steering oil pump systems - Google Patents
A kind of two-line voltage synthesis automobile assisted power steering oil pump systems Download PDFInfo
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- CN207292119U CN207292119U CN201721008231.2U CN201721008231U CN207292119U CN 207292119 U CN207292119 U CN 207292119U CN 201721008231 U CN201721008231 U CN 201721008231U CN 207292119 U CN207292119 U CN 207292119U
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Abstract
The utility model is a kind of two-line voltage synthesis automobile assisted power steering oil pump systems,Storage battery exports 560V direct currents to controller high voltage input terminal,DC560V voltages are converted into AC380V output voltages by high-tension circuit by transformer,High-voltage alternating permanent-magnet synchronous winding normal work driving oil pump at this time,System control cpu receives feedback resistance R1 both end voltages signal and judges that high-tension line is working properly in the process,When automobile is inputted and disconnected in abnormal condition downward driving controller DC560V,System control cpu detects that feedback resistance R1 both ends lose voltage and judge high-tension circuit job failure,The low-voltage circuit of system control cpu control at this time is started to work,Controller, which starts output DC24V voltages, makes the brushless winding start-up operation driving oil pump of low-voltage direct,When automobile normally stops when driving,System control cpu disconnects low-voltage circuit,Controller DC24V outputs disconnect；Controller is communicated with VCU by CAN bus.The high-low pressure of control double-winding motor takes over input, works normally power-assisted steering operation of oil pump.
Description
Technical field
It the utility model is related to a kind of automobile assisted power steering oil pump, the high-low voltage of control automobile assist motor is taken over defeated
Enter, reach and low-voltage DC drive assist motor work is carried by automobile under automobile emergency high pressure powering-off state, turn power-assisted
Work on to oil pump so as to fulfill emergent steering, be specifically a kind of two-line voltage synthesis automobile assisted power steering oil pump systems.
Background technology
The automobile assisted power steering oil pump control of existing market is all by controlling high voltage power supply input to reach control oil pump
The purpose of work.Once an emergency situation is encountered, motor loses high voltage power supply input, and operation of oil pump just stops, automobile assisted power steering
Device will be out of hand, and security is poor.
At present mainstream control mode cause controller it is complicated, it is of high cost, need that inversion, inversion efficiency be low, poor reliability.
Reply at present《Electric motor coach safety specification》The mainstream technology route of the requirement of middle 4.5.2 is simplex winding electricity
Machine, control mode such as Fig. 1.Wherein controller inputs vehicle high pressure 560V and low pressure 24V at the same time.When high-tension circuit works, output
380V alternating voltages；When high input voltage disconnects, controller is switched to 24V operating modes, and 24V direct currents, pass through inversion, output
380V high-voltage alternatings, maintain motor operating, the drawback is that inversion efficiency is very low；Controller architecture is complicated, of high cost, reliability
It is low.
Utility model content
The utility model is to meet《Electric motor coach safety specification》The requirement of middle 4.5.2：Vehicle is being run over
Cheng Zhong, occur needing vehicle actively break B grades of high-voltage electricity vehicle abnormality situation when, should be kept when speed is more than 5 km/h
Break B grades of electricity again after steering maintenance power-assisted state or at least 30 s of holding power steering state, a kind of twin voltages of spy's proposition
Control automobile assisted power steering oil pump systems.
The technical solution of the utility model is for this：A kind of two-line voltage synthesis automobile assisted power steering oil pump systems, including it is double
Winding electric machine, wherein double-winding motor are alternating-current synchronous winding and brush DC winding, automobile in normal operating conditions,
DC560V voltages are converted into by storage battery output 560V direct currents to controller high voltage input terminal, high-tension circuit by transformer
AC380V output voltages, high-voltage alternating permanent-magnet synchronous winding normal work driving oil pump at this time, so as to fulfill power-assisted steering, herein
During system control cpu receive feedback resistance R1 both end voltages signal and judge that high-tension line is working properly, its feature exists
In：When automobile is inputted and disconnected in abnormal condition downward driving controller DC560V, system control cpu detects feedback resistance R1
Both ends lose voltage and judge high-tension circuit job failure, and the low-voltage circuit of system control cpu control at this time is started to work, controller
Starting output DC24V voltages makes the brushless winding start-up operation driving oil pump of low-voltage direct, so as to fulfill power-assisted steering；When automobile just
Often stop when driving, system control cpu disconnects low-voltage circuit, and controller DC24V outputs disconnect；In whole workflow, control
Device processed is communicated with VCU by CAN bus.
Beneficial effect：
The high-low pressure of the utility model control double-winding motor takes over input, double-winding motor is lost in high-voltage electricity input
Shi Yiran can rely on low tension to rotate, and work normally power-assisted steering operation of oil pump.
Solves high voltage power supply power-off（Failure）Emergent Steering afterwards；It can meet laws and regulations requirement, relative to use
Simplex winding motor, this utility model have 380V exchanges and the input connection of 24V direct currents at the same time；24V is input to 24V outputs need not
Inversion, it is efficient；Controller can be communicated with VCU by CAN bus, facilitate full-vehicle control.
Brief description of the drawings
Fig. 1 is the control circuit schematic diagram of simplex winding motor.
Fig. 2 is the control circuit schematic diagram of the utility model.
Fig. 3 is that the controller control high-low pressure of the utility model takes over input schematic diagram.
Embodiment
The utility model is as shown in Figure 2,3.
For the utility model automobile in normal operating conditions, automobile storage battery exports 560V DC voltages to controller high pressure
Input terminal, then controller high-voltage output end output 380V alternating currents arrive motor high input voltage interface, at this time 380V alternating currents drive
Dynamic motor AC permanent-magnet synchronous winding work, realizes that motor drives oil pump, so as to fulfill power-assisted steering；When 560V high voltage direct currents
When input disconnects, controller detects high voltage power supply cut-off signal, connects automobile immediately at this time and carries 24V low-voltage DCs, low
Pressure 24V direct currents are input to controller low pressure, input end by automobile storage battery, then are output to motor by controller low-voltage output
Low pressure input interface, winding work that 24V low-voltage directs are brushless, realizes that motor drives oil pump, so as to fulfill power-assisted steering, whole work
Make in flow, controller is communicated with VCU by CAN bus.
Controller control high-low pressure takes over input principle in Fig. 3：
Automobile storage battery carries 24V low-voltage DCs, and device is powered in order to control；Automobile is in normal operating conditions, battery output
DC560V voltages are converted into AC380V output electricity by 560V direct currents to controller high voltage input terminal, high-tension circuit by transformer
Press, controller system control cpu receives feedback resistance R1 both end voltages signal and judges that high-tension line works in the process
Normally；When automobile is inputted and disconnected in abnormal condition downward driving controller ADC560V, system control cpu detects feedback electricity
Resistance R1 both ends lose voltage and judge high-tension circuit job failure, and system control cpu will be sent out to miniature relay coil KA1 at this time
Send a pulse signal, coil KA1 obtains electric back contact switch KS1-A and KS1-B and closes immediately, relay coil KA1 immediately oneself
Lock, low-voltage circuit are started to work, and controller starts to export DC24V voltages；When automobile normally stops when driving, system control cpu
A pulse signal will be sent and give miniature electro-magnetic relay coil KA2, KS2 is switched at this time and disconnect, coil KA1 dead electricity, low pressure
Circuit disconnects, and controller DC24V outputs disconnect.
Claims (1)
1. a kind of two-line voltage synthesis automobile assisted power steering oil pump systems, including double-winding motor, wherein double-winding motor are exchange
Permanent-magnet synchronous winding and brush DC winding, for automobile in normal operating conditions, storage battery exports 560V direct currents to controller
DC560V voltages are converted into AC380V output voltages by high voltage input terminal, high-tension circuit by transformer, and high-voltage alternating is forever at this time
Magnetic-synchro winding normal work driving oil pump, so as to fulfill power-assisted steering, system control cpu, which receives, in the process feeds back electricity
Resistance R1 both end voltages signal simultaneously judges that high-tension line is working properly, it is characterised in that：When automobile is in abnormal condition downward driving control
When device DC560V inputs processed disconnect, system control cpu detects that feedback resistance R1 both ends lose voltage and judge high-tension circuit work
Make failure, the low-voltage circuit of system control cpu control at this time is started to work, and controller, which starts output DC24V voltages, makes low-voltage direct
Brushless winding, which is started to work, drives oil pump, so as to fulfill power-assisted steering；When automobile normally stops when driving, system control cpu makes
Low-voltage circuit disconnects, and controller DC24V outputs disconnect；In whole workflow, controller is led to VCU by CAN bus
News.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008231.2U CN207292119U (en) | 2017-08-14 | 2017-08-14 | A kind of two-line voltage synthesis automobile assisted power steering oil pump systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721008231.2U CN207292119U (en) | 2017-08-14 | 2017-08-14 | A kind of two-line voltage synthesis automobile assisted power steering oil pump systems |
Publications (1)
| Publication Number | Publication Date |
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| CN207292119U true CN207292119U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721008231.2U Active CN207292119U (en) | 2017-08-14 | 2017-08-14 | A kind of two-line voltage synthesis automobile assisted power steering oil pump systems |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351914A (en) * | 2017-08-14 | 2017-11-17 | 十堰东峻汽车系统技术有限公司 | A kind of two-line voltage synthesis automobile assisted power steering oil pump systems |
| CN109291987A (en) * | 2018-09-30 | 2019-02-01 | 安徽安凯汽车股份有限公司 | A kind of New Low Voltage auxiliary drive control system |
-
2017
- 2017-08-14 CN CN201721008231.2U patent/CN207292119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107351914A (en) * | 2017-08-14 | 2017-11-17 | 十堰东峻汽车系统技术有限公司 | A kind of two-line voltage synthesis automobile assisted power steering oil pump systems |
| CN109291987A (en) * | 2018-09-30 | 2019-02-01 | 安徽安凯汽车股份有限公司 | A kind of New Low Voltage auxiliary drive control system |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210517 Address after: 442000 1-3, 2-3, 3-3, building 1, No. 40, Renmin South Road, Maojian District, Shiyan City, Hubei Province Patentee after: Shiyan Dongjun Automobile Technology Co.,Ltd. Address before: 442000 no.40-4, Renmin South Road, Maojian District, Shiyan City, Hubei Province Patentee before: SHIYAN DONGJUN AUTOMOBILE SYSTEM TECHNOLOGY Co.,Ltd. |