CN103192870A - Electric power steering controller - Google Patents
Electric power steering controller Download PDFInfo
- Publication number
- CN103192870A CN103192870A CN2012100222563A CN201210022256A CN103192870A CN 103192870 A CN103192870 A CN 103192870A CN 2012100222563 A CN2012100222563 A CN 2012100222563A CN 201210022256 A CN201210022256 A CN 201210022256A CN 103192870 A CN103192870 A CN 103192870A
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- relay
- steering controller
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- bridge
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Abstract
The invention relates to an electric power steering controller, which comprises a microcontroller unit (1), a sensor signal processing unit (2), a feedback unit (3), an H-bridge driving unit (4), a relay unit (5), a power source unit (6), a CAN(Controller Area Network) unit and a fault diagnosis unit (8), wherein the relay unit provided by the invention adopts special arrangement; the feedback unit, the H-bridge driving unit and an H-bridge form a driving module; and the relay unit, the power source unit, the CAN unit and the fault diagnosis unit form a socket module. The electric power steering controller has the characteristics of reliability in working, high safety performance, reasonable arrangement, compact structure, fewer components and parts, high utilization of hardware resources, flexibility in control and quick response.
Description
Technical field
The present invention relates to a kind of vehicle electric power-assisted steering device, be particularly useful on the manned vehicle of curb mass less than 1t.
Background technology
Current, electronic control type electric boosting steering system (Electric Power System is called for short EPS) replaces hydraulic power-assist steering system gradually with beginnings such as its good environmental protection and energy saving, operability, stability, assembling maintainabilities.The EPS principle of work is on traditional mechanical drive steering swivel system basis, adds a direct current assist motor.ECU controls the power-assisted size and Orientation of motor output with certain algorithm according to torque sensor and car speed sensor signal.The DC machine auxiliary force passes by magnetic clutch or relay, speed reduction gearing and reach the power-assisted purpose on transmission device such as steering shaft.
Electric booster steering controller is generally by microcontroller ECU, sensor signal processing unit, feedback unit, H bridge driver element, relay unit, power subsystem unit, CAN unit, failure diagnosis unit etc., the layout that increases components and parts of unit number becomes pretty troublesome, makes steering controller become complicated.The layout of various control units on PCB becomes irregular, and be also very difficult to the welding of hardware.
When automobile under emergency case, electric machine controller can produce super-high-current and burn out controller or DC machine.Along with the further raising of people to vehicle operating alerting ability, security requirement, traditional magnetic clutch can not satisfy the requirement of control alerting ability, safety.
Summary of the invention
The objective of the invention is to improve the structure of electric booster steering controller, make each hardware be easy to weld at pcb board, and the relay unit that adopts two relays, the safety that improves electric power steering, reliability.Prevent controller generation super-high-current and burn out controller or DC machine.
Technical scheme of the present invention is: a kind of electric booster steering controller, comprise torque sensor, car speed sensor, engine speed sensor, ECU (Electrical Control Unit), wherein ECU (Electrical Control Unit) comprises microcontroller ECU, sensor signal processing unit, feedback unit, H bridge driver element, relay unit, power subsystem unit, CAN unit, failure diagnosis unit.The output of H bridge driver element connects the servo-steering motor, and torque sensor, car speed sensor and engine speed sensor are connected the sensor signal processing unit.The cancellation magnetic clutch adopt relay unit to replace, and this relay unit has two relays.H bridge driver element, feedback unit and H bridge are formed driver module, and relay unit, power subsystem unit, CAN unit and failure diagnosis unit are formed the socket module.
Description of drawings
Fig. 1 is controller component units scheme drawing.
Fig. 2 is the controller PCB module diagram.
As shown in Figure 1,5 is relay unit, and this relay unit replaces electromagnetic clutch, makes EPS reduce hardware resource, cost-cutting, and control is simple.Relay unit is made up of relay (1) and relay (2), relay (1) analog electrical magnetic clutch, and relay (2) is normally closed, shields the series connection of two relays.When controller generation super-high-current, when surpassing the restriction electric current of motor, relay (2) turn-offs at once, and DC machine and steering controller are kept apart, and plays the effect of protection controller and DC machine.
As shown in Figure 2, H bridge driver element, feedback unit and H bridge are formed H bridge driver module (11), relay unit, power subsystem unit, CAN unit and failure diagnosis unit are formed socket module (12).Micro controller unit is controller module (10), and the sensor signal processing unit is sensor signal processing module (9), by this combination, makes electric powered steering controller connection and reasonable arrangement, and the welding of PCB hardware easily.
Claims (4)
1. electric booster steering controller, comprise torque sensor (A), car speed sensor (B), engine speed sensor (C), ECU (Electrical Control Unit), wherein ECU (Electrical Control Unit) comprises microcontroller ECU (1), sensor signal processing unit (2), feedback unit (3), H bridge driver element (4), relay unit (5), power subsystem unit (6), CAN unit (7), failure diagnosis unit (8).The output of H bridge driver element (4) connects the power steering motor, and torque sensor, car speed sensor and engine speed sensor are connected sensor signal processing unit (2).It is characterized in that cancelling magnetic clutch, replace with relay unit (6), H bridge driver element (4), feedback unit (3) and H bridge are formed driver module, and relay unit (5), power subsystem unit (6), CAN unit (7) and failure diagnosis unit (8) are formed the socket module.
2. electric booster steering controller according to claim 1 is characterized in that microcontroller ECU (1) adopts 16 8-digit microcontrollers.
3. electric booster steering controller according to claim 1 is characterized in that ECU (Electrical Control Unit) is provided with CAN unit (7), links to each other with vehicle body CAN bus (D) with microcontroller ECU (1) respectively.
4. electric booster steering controller according to claim 1 is characterized in that relay unit (5) is made up of two relays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100222563A CN103192870A (en) | 2012-01-09 | 2012-01-09 | Electric power steering controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100222563A CN103192870A (en) | 2012-01-09 | 2012-01-09 | Electric power steering controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103192870A true CN103192870A (en) | 2013-07-10 |
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ID=48715733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100222563A Pending CN103192870A (en) | 2012-01-09 | 2012-01-09 | Electric power steering controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103192870A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107735310A (en) * | 2015-07-08 | 2018-02-23 | 日立汽车***株式会社 | The control device of power steering gear and power steering gear |
| CN108502013A (en) * | 2018-04-11 | 2018-09-07 | 东风柳州汽车有限公司 | Pure electric automobile steering assist motor control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064017Y (en) * | 2007-03-20 | 2008-05-21 | 林士云 | Electric power-assisted steering controller frame structure |
| CN101396993A (en) * | 2008-10-24 | 2009-04-01 | 宁波经济技术开发区茂伟氏机电制造有限公司 | Electric automobile intelligent control system |
| CN101450677A (en) * | 2007-11-29 | 2009-06-10 | 北京理工大学 | Motor push rod type power-assisted steering apparatus |
-
2012
- 2012-01-09 CN CN2012100222563A patent/CN103192870A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201064017Y (en) * | 2007-03-20 | 2008-05-21 | 林士云 | Electric power-assisted steering controller frame structure |
| CN101450677A (en) * | 2007-11-29 | 2009-06-10 | 北京理工大学 | Motor push rod type power-assisted steering apparatus |
| CN101396993A (en) * | 2008-10-24 | 2009-04-01 | 宁波经济技术开发区茂伟氏机电制造有限公司 | Electric automobile intelligent control system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107735310A (en) * | 2015-07-08 | 2018-02-23 | 日立汽车***株式会社 | The control device of power steering gear and power steering gear |
| CN108502013A (en) * | 2018-04-11 | 2018-09-07 | 东风柳州汽车有限公司 | Pure electric automobile steering assist motor control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |