CN202389448U - Circulative-ball hydraulic power-assisted steering system of motor-driven pump - Google Patents
Circulative-ball hydraulic power-assisted steering system of motor-driven pump Download PDFInfo
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- CN202389448U CN202389448U CN2011205151052U CN201120515105U CN202389448U CN 202389448 U CN202389448 U CN 202389448U CN 2011205151052 U CN2011205151052 U CN 2011205151052U CN 201120515105 U CN201120515105 U CN 201120515105U CN 202389448 U CN202389448 U CN 202389448U
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Abstract
The utility model discloses a circulative-ball hydraulic power-assisted steering system of a motor-driven pump. The circulative-ball hydraulic power-assisted steering system comprises a circulative-ball hydraulic power-assisted steering device, an oil feeding pipe, an oil return pipe, an oil storage tank and a steering oil pump, wherein the circulative-ball hydraulic power-assisted steering device, the oil storage tank and the steering oil pump form a hydraulic system loop through the oil feed pipe and the oil return pipe, the steering oil pump in the hydraulic system loop is driven by a driving motor, the driving motor is connected with an electric control unit, and the electric control unit is connected with a torque/corner sensor, a mileage vehicle speed sensor and an engine rotation speed sensor, reads signals of the torque/corner sensor, the mileage vehicle speed sensor and the engine rotation speed sensor and feeds back the signals to a driving motor so as to control the rotation speed of the driving motor and further to control the hydraulic oil flow rate of the steering oil pump pumped into the circulative-ball hydraulic power-assisted steering device. The circulative-ball hydraulic power-assisted steering system has a simple and reasonable structure and low use cost and can ensure that a steering power-assisting process of an automobile is gentle, smooth and comfortable.
Description
Technical field
The utility model relates to a kind of hydraulic power-assist steering system, particularly a kind of can according to the running car situation regulate the motor-drive pump rotating speed recirculating ball motor-drive pump hydraulic power-assist steering system.
Background technology
At present; The recirculating ball hydraulic power-assist steering system is the main flow servo steering system of Heavy Duty Commercial Cars such as truck, passenger vehicle; It is made up of recirculating ball hydraulic power steering gear, oil inlet, oil return pipe, petrol storage tank, power steerig pump etc.; Power steerig pump is driven by automotive engine and to the recirculating ball hydraulic power steering gear power-assisted hydraulic oil is provided through oil inlet, and oil return is then flowed back to petrol storage tank by oil return pipe.Power steerig pump rotating speed in this steering swivel system is by the rotating speed of automobile engine decision, no matter whether bearing circle need turn to, as long as engine operation; Power steerig pump just in work, does not have speed-regulating function, so; Fuel oil consumption is bigger, accounts for 3% of the total fuel oil consumption of automobile; Simultaneously, because of the rotating speed of power steerig pump only is associated with the driving engine of automobile, it is related to make that power-assisted and the situation of running car of this steering swivel system do not have, and when galloping, the road-holding property of bearing circle is undesirable.In addition; Current large commercial new-energy automobile is successful development; And promoting the use of, this new forms of energy commercial car particularly pure electric automobile has not had driving engine, just needs to solve the driving problems of power steerig pump when adopting the recirculating ball hydraulic power-assist steering system.To the problems referred to above; Also having occurred some in the market adopts motor that power steerig pump is driven so that the electronic recirculating ball hydraulic power-assist steering system of working hydraulic pressure oil to be provided to the recirculating ball hydraulic power steering gear; But the method is not associated with the manipulation situation of bearing circle and the travel conditions of automobile; Adjusting to hydraulic pressure oil mass in the power-assisted steering device is limited, can not well confirm the mode of operation of motor, has also just limited soften, smoothness and the comfort level of power steering process.
The utility model content
In order to overcome the deficiency of prior art, the utility model provide a kind of gather the signal of moment of torsion/rotary angle transmitter, mileage car speed sensor and engine speed sensor and feed back to drive motor through ECU regulate and control, guarantee the recirculating ball motor-drive pump hydraulic power-assist steering system that the power steering process is soft, comfortable and simple and reasonable, use cost is low to realize the hydraulic fluid flow rate that power steerig pump is pumped into hydraulic power steering gear.
The utility model solves the technical scheme that its technical matters adopted:
A kind of recirculating ball motor-drive pump hydraulic power-assist steering system; It comprises recirculating ball hydraulic power steering gear, oil inlet, oil return pipe, petrol storage tank and power steerig pump; Recirculating ball hydraulic power steering gear, petrol storage tank and power steerig pump constitute a hydraulic circuit through oil inlet and oil return pipe; Power steerig pump in the said hydraulic circuit is by drive motor drives; Said drive motor is connected with ECU; Said ECU is connected with moment of torsion/rotary angle transmitter, mileage car speed sensor and engine speed sensor, and ECU reads the signal of moment of torsion/rotary angle transmitter, mileage car speed sensor and engine speed sensor and feeds back to drive motor and controls with the rotating speed to drive motor, and then the control power steerig pump pumps into the hydraulic fluid flow rate of recirculating ball hydraulic power steering gear.
Preferably, said drive motor is a synchronous dynamo.
The beneficial effect of the utility model is: this product is the hydraulic power-assist steering system of drive motor to drive source; Gather the signal of moment of torsion/rotary angle transmitter, mileage car speed sensor and engine speed sensor and feed back to drive motor through ECU; Realized power steerig pump is pumped into the regulation and control of the hydraulic fluid flow rate of hydraulic power steering gear, made power steerig pump can change with the variation of running car situation to the hydraulic fluid flow rate that the recirculating ball hydraulic power steering gear provides, therefore the bearing circle operational stability has also obtained bigger improvement during galloping; Guarantee that the power steering process is softer, steady and comfortable; Simultaneously, by means of the controllable function of ECU, when bearing circle does not turn to; Drive motor is not worked or is in the slow running state, has practiced thrift the energy.The utility model is simple and reasonable, and use cost is low, can be widely used on the hydraulic power-assist steering system of Heavy Duty Commercial Cars such as truck, passenger vehicle.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the mounting structure scheme drawing of the utility model.
The specific embodiment
With reference to Fig. 1; A kind of recirculating ball motor-drive pump hydraulic power-assist steering system of the utility model; It comprises recirculating ball hydraulic power steering gear 1, oil inlet 2, oil return pipe 3, petrol storage tank 4 and power steerig pump 5; Recirculating ball hydraulic power steering gear 1, petrol storage tank 4 and power steerig pump 5 constitute a hydraulic circuit through oil inlet 2 and oil return pipe 3, and the power steerig pump 5 in the said hydraulic circuit is driven by drive motor 6, and said drive motor 6 is connected with ECU 7; Said ECU 7 is connected with moment of torsion/rotary angle transmitter 8, mileage car speed sensor 9 and engine speed sensor 10; ECU 7 reads the signal of moment of torsion/rotary angle transmitter 8, mileage car speed sensor 9 and engine speed sensor 10, and passes through the control algorithm of ECU 7 in-to-in control programs, and algorithm structure is fed back to drive motor 6; So that the rotating speed to drive motor 6 is controlled, and then control power steerig pump 5 pumps into the hydraulic fluid flow rate of recirculating ball hydraulic power steering gear 1.During running car; ECU 7 can be gathered the torque of bearing circle through the signal wire (SW) that connects moment of torsion/rotary angle transmitter 8; Signal wire (SW) through connecting mileage car speed sensor 9 is gathered automobile driving speed; Gather the rotating speed of driving engine through the signal wire (SW) that connects engine speed sensor 10; And give the rotating speed of drive motor 6 and controlling and driving motor 6 with the dtc signal that is collected, GES and the engine rotational speed signal control algorithm through ECU 7 in-to-in control programs with the running car condition feedback, also just realized drive motor 6 is pumped into the regulation and control of the flow of the power-assisted hydraulic oil in the recirculating ball hydraulic power steering gear 1 through oil inlet 2, when the hydraulic fluid flow rate that pumps into recirculating ball hydraulic power steering gear 1 not simultaneously; Hydraulic oil drives recirculating ball hydraulic power steering gear 1 in-to-in rack piston drive tooth fan and realizes the power steering of front-wheel just different; When turning to of bearing circle was big, the hydraulic fluid flow rate that pumps into was big, and the power steering that recirculating ball hydraulic power steering gear 1 produces is big; When galloping, the hydraulic fluid flow rate that pumps into is little, and the power steering that recirculating ball hydraulic power steering gear 1 produces is little, when making high speed steering more smoothly; In addition, by means of the controllable function of ECU 7, when bearing circle did not turn to, drive motor 6 was not worked or is in the slow running state, has practiced thrift the energy.In a word; Having adopted the recirculating ball motor-drive pump hydraulic power-assist steering system of control unit 7 and moment of torsion/rotary angle transmitter 8, mileage car speed sensor 9 and engine speed sensor 10 can be that the mode of operation of power steerig pump 5 is monitored to the power-assisted oil pump; Confirm the mode of operation of drive motor 6 through torque, Vehicle Speed and the engine rotational speed of the bearing circle that feeds back; In the hope of oil pressure work balance is provided, guarantee that the power steering process is soft, steady, comfortable, simple and reasonable; Use cost is low, can be widely used on the hydraulic power-assist steering system of Heavy Duty Commercial Cars such as truck, passenger vehicle.
Preferably, said drive motor 6 is a synchronous dynamo.When adopting synchronous dynamo; Through the frequency that control unit 7 is regulated the input motor, can change the rotating speed of drive motor 6 easily, with the adaptive system functional requirement; In addition; The rotating speed of synchronous dynamo is only relevant with the frequency of input motor, and irrelevant with the size of load, more can be accurately regulates rotating speed of motor through torque, Vehicle Speed and the engine rotational speed of the bearing circle that feeds back.
This product is the hydraulic power-assist steering system of drive motor to drive source; Gather the signal of moment of torsion/rotary angle transmitter, mileage car speed sensor and engine speed sensor and feed back to drive motor through ECU; Realized power steerig pump is pumped into the regulation and control of the hydraulic fluid flow rate of hydraulic power steering gear, made power steerig pump can change with the variation of speed of a motor vehicle travel conditions to the hydraulic fluid flow rate that the recirculating ball hydraulic power steering gear provides, therefore the bearing circle operational stability has also obtained bigger improvement during galloping; Guarantee that the power steering process is softer, steady and comfortable; Simultaneously, by means of the controllable function of ECU, when bearing circle does not turn to; Drive motor is not worked or is in the slow running state, has practiced thrift the energy.The utility model is simple and reasonable, and use cost is low, can be widely used on the hydraulic power-assist steering system of Heavy Duty Commercial Cars such as truck, passenger vehicle.
The above, the just preferred embodiment of the utility model, the utility model is not limited to above-mentioned embodiment, as long as it reaches the technique effect of the utility model with same or analogous means, all should belong to the protection domain of the utility model.
Claims (2)
1. recirculating ball motor-drive pump hydraulic power-assist steering system; Comprise recirculating ball hydraulic power steering gear (1), oil inlet (2), oil return pipe (3), petrol storage tank (4) and power steerig pump (5); Recirculating ball hydraulic power steering gear (1), petrol storage tank (4) and power steerig pump (5) constitute a hydraulic circuit through oil inlet (2) and oil return pipe (3); It is characterized in that: the power steerig pump in the said hydraulic circuit (5) is driven by drive motor (6); Said drive motor (6) is connected with ECU (7); Said ECU (7) is connected with moment of torsion/rotary angle transmitter (8), mileage car speed sensor (9) and engine speed sensor (10); ECU (7) reads the signal of moment of torsion/rotary angle transmitter (8), mileage car speed sensor (9) and engine speed sensor (10) and feeds back to drive motor (6) so that the rotating speed of drive motor (6) is controlled, and then control power steerig pump (5) pumps into the hydraulic fluid flow rate of recirculating ball hydraulic power steering gear (1).
2. a kind of recirculating ball motor-drive pump hydraulic power-assist steering system according to claim 1 is characterized in that: said drive motor (6) is a synchronous dynamo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151052U CN202389448U (en) | 2011-12-12 | 2011-12-12 | Circulative-ball hydraulic power-assisted steering system of motor-driven pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151052U CN202389448U (en) | 2011-12-12 | 2011-12-12 | Circulative-ball hydraulic power-assisted steering system of motor-driven pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202389448U true CN202389448U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205151052U Expired - Fee Related CN202389448U (en) | 2011-12-12 | 2011-12-12 | Circulative-ball hydraulic power-assisted steering system of motor-driven pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202389448U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442344A (en) * | 2011-12-12 | 2012-05-09 | 江门市兴江转向器有限公司 | Circulating ball motor pump type hydraulic power-assisted steering system |
| CN103129607A (en) * | 2013-03-08 | 2013-06-05 | 盐城市步高汽配制造有限公司 | Electro-hydraulic power steering system for battery electric buses |
| CN104401388A (en) * | 2014-10-23 | 2015-03-11 | 北京奥特尼克科技有限公司 | Intelligent electro-hydraulic steering system |
| CN109733471A (en) * | 2019-03-01 | 2019-05-10 | 安徽安凯汽车股份有限公司 | A kind of intelligent steering system |
-
2011
- 2011-12-12 CN CN2011205151052U patent/CN202389448U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102442344A (en) * | 2011-12-12 | 2012-05-09 | 江门市兴江转向器有限公司 | Circulating ball motor pump type hydraulic power-assisted steering system |
| CN103129607A (en) * | 2013-03-08 | 2013-06-05 | 盐城市步高汽配制造有限公司 | Electro-hydraulic power steering system for battery electric buses |
| CN104401388A (en) * | 2014-10-23 | 2015-03-11 | 北京奥特尼克科技有限公司 | Intelligent electro-hydraulic steering system |
| CN109733471A (en) * | 2019-03-01 | 2019-05-10 | 安徽安凯汽车股份有限公司 | A kind of intelligent steering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20171212 |