CN203157970U - Electronic parking brake system for vehicle - Google Patents
Electronic parking brake system for vehicle Download PDFInfo
- Publication number
- CN203157970U CN203157970U CN 201220574339 CN201220574339U CN203157970U CN 203157970 U CN203157970 U CN 203157970U CN 201220574339 CN201220574339 CN 201220574339 CN 201220574339 U CN201220574339 U CN 201220574339U CN 203157970 U CN203157970 U CN 203157970U
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- parking
- control unit
- gripping power
- vehicle
- brake system
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Abstract
The utility model discloses an electronic parking brake system for a vehicle, which comprises an electronic parking control unit and a parking execution mechanism, wherein the electronic parking control unit is communicated with the parking execution mechanism, comprises an inclination sensor and a current detection device, and is connected with an ignition signal, a parking switch signal and a gear signal respectively; the current detection device comprises a current sensor; and the electronic parking control unit calculates a parking clamp force according to detected current. With the adoption of the technical scheme, not only can the mechanical life of the parking execution mechanism be prolonged, but also the noise in a parking process of the vehicle and the oil consumption can be reduced; and the electronic parking brake system has the characteristics of low manufacturing cost, high security and stability, high reliability and the like.
Description
Technical field
The utility model belongs to vehicle with electronic brake system manufacturing technology field, specifically, relates to a kind of vehicle electronic brake system.Vehicle in this patent includes but not limited to automobile, motor vehicle driven by mixed power, pure electric vehicle etc.
Background technology
At present, in motor vehicle braking system manufacturing technology field, control electronic utilization more and more widely for machinery, electronic brake system also more and more appears in the customer visual field.Electronic brake system (EPB:Electrical Park Brake) refers to the provisional braking in the driving process and the long time property braking function after stopping combines, and is realized the technology of stopping brake by electronic control mode.
Electronic brake system can be calculated vehicle on the slope because the sliding force that gravity produces comes the balance sliding force by trailing wheel being applied braking force then by its control system, and vehicle can be parked on the slope.When vehicle start, obtain the signal of the size of displacement pickup on the pedal of clutch and throttle by control system and calculate the braking force that need apply, know the size of engine traction simultaneously by high-speed CAN and engine computer communication.The increase of the automatic calculation engine tractive force of computer reduces braking force accordingly.When tractive force enough overcomes sliding force, computer drive motor brake off, thus realize the smooth and easy starting of vehicle.
In the prior art, vehicle is in Rapid development stage with the electronic brake system technology, but also there is weak point in a lot of aspect.Vehicle electronic brake system of the prior art, when vehicle needs Parking, electronics Parking this moment control unit control Parking actuating unit applies fixing Parking gripping power Parking (this gripping power is invariable), and the gripping power size of the implementing maxim that requires of car load normally, can safe Parking on than steep gradient to guarantee vehicle.There are many technical matterss in the prior art:
1, because electronic brake system of the prior art applies maximum fixing Parking gripping power for a long time, and to guarantee that this gripping power is invariable, cause shorten greatly the service life of Parking actuating unit.
2, because electronic brake system of the prior art applies maximum fixing Parking gripping power for a long time, and to guarantee that this gripping power is invariable, the oil consumption of car load is increased greatly, cause very big waste, be unfavorable for energy-conserving and environment-protective.
3, because electronic brake system of the prior art applies maximum fixing Parking gripping power for a long time, and to guarantee that this gripping power is invariable, make in the Parking process, to have produced the noise that is difficult to improve, cause noise pollution.
The utility model content
Technical problem to be solved in the utility model is, vehicle electronic brake system of the prior art, when vehicle in the Parking process, electronics Parking control unit control Parking actuating unit applies fixing Parking gripping power Parking (this gripping power is invariable), causes shorten greatly the service life of Parking actuating unit; The oil consumption of car load is increased greatly, cause very big waste, be unfavorable for energy-conserving and environment-protective; Make in the Parking process, to have produced the noise that is difficult to improve, cause technical matterss such as noise pollution, and a kind of vehicle electronic brake system is provided.
Technical conceive of the present utility model is, through to the prior art analysis as can be known, during Parking, needed Parking gripping power is different to vehicle on the ramp that the gradient varies in size, and the Parking actuating unit can apply the Parking gripping power that varies in size and carry out Parking.Concrete design is, the utility model provides a kind of vehicle electronic brake system, to the vehicle that has been equipped with electronic brake system when the Parking, electronics Parking control unit detects the obliquity sensor signal, the gradient size of the residing physical features of analysis and judgement vehicle, calculate the needed Parking gripping power of vehicle Parking on this ramp, control Parking actuating unit carries out Parking by predetermined Parking gripping power.
Technical scheme provided by the utility model is, a kind of vehicle electronic brake system control method comprises electronics Parking control unit, obliquity sensor, Parking actuating unit,
The first step, described electronics Parking control unit detects ignition signal, Parking on-off signal, shift signal;
In second step, described electronics Parking control unit detects the obliquity sensor signal;
In the 3rd step, described electronics Parking control unit calculates the corresponding gripping power of described Parking actuating unit according to the obliquity sensor signal;
In the 4th step, described electronics Parking control unit sends instruction to described Parking actuating unit;
In the 5th step, described Parking actuating unit begins action, and brake disc is applied the described corresponding gripping power that calculates;
In the 6th step, when reaching described corresponding gripping power, described Parking actuating unit keeps this gripping power.
Described electronics Parking control unit detects the obliquity sensor signal, calculates the gradient size of the residing physical features of vehicle.
Described electronics Parking control unit compares the sizes values of the described gradient and the calibration value of experiment, calculates the Parking gripping power corresponding with this ratio of slope, the Parking of control Parking actuating unit.
Described Parking actuating unit comprises motor, described electronics Parking control unit detects the size of the Parking gripping power that described Parking actuating unit applies by sensor, and when the Parking gripping power reached required value, the control motor stopped, otherwise, continue to apply the Parking gripping power.
Described sensor is for detecting the current sensor of current of electric, and described electronics Parking control unit calculates the size of Parking gripping power by detected size of current.
Described motor comprises idle travel stage and clamping stage, described idle travel stage and described clamping stage are successive, begin to increase with the increase of the electric current of motor at described clamping stage Parking gripping power, when Parking gripping power during to required value, motor stops operating, the electric current vanishing, Parking is finished.
A kind of vehicle electronic brake system comprises electronics Parking control unit and Parking actuating unit, and described electronics Parking control unit is connected with described Parking actuating unit, and described electronics Parking control unit includes obliquity sensor and current sensing means.
Described electronics Parking control unit links to each other with ignition signal, Parking on-off signal, shift signal respectively; Described current sensing means comprises current sensor, and described electronics Parking control unit calculates the size of Parking gripping power by detected size of current.
Described electronics Parking control unit detects the obliquity sensor signal, calculates the gradient size of the residing physical features of vehicle.
Described electronics Parking control unit compares the sizes values of the described gradient and the calibration value of experiment, calculates the Parking gripping power corresponding with this ratio of slope, the Parking of control Parking actuating unit; Described Parking actuating unit comprises motor, described electronics Parking control unit detects the size of the Parking gripping power that described Parking actuating unit applies by sensor, and when the Parking gripping power reached required value, the control motor stopped, otherwise, continue to apply the Parking gripping power.
Adopt technical scheme provided by the utility model, can effectively solve vehicle electronic brake system of the prior art, when vehicle in the Parking process, electronics Parking control unit control Parking actuating unit applies fixing Parking gripping power Parking (this gripping power is invariable), causes shorten greatly the service life of Parking actuating unit; The oil consumption of car load is increased greatly, cause very big waste, be unfavorable for energy-conserving and environment-protective; Make and in the Parking process, produced the noise that is difficult to improve, cause technical matterss such as noise pollution, simultaneously, technical scheme provided by the utility model, when vehicle during in Parking, electronic brake system is by the gradient size of obliquity sensor detection vehicle physical features of living in, and through calculation process, control Parking actuating unit applies predetermined Parking gripping power and carries out Parking.Technical scheme provided by the utility model both can prolong mechanical life of Parking actuating unit, can improve noise in the vehicle Parking process again, reduce oil consumption; Also have characteristics such as low cost of manufacture, security and stability height, good reliability simultaneously.
Description of drawings
By reference to the accompanying drawings, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 vehicle of the present utility model ramp of living in gradient size and Parking gripping power corresponding relation scheme drawing;
The corresponding relation figure signal of Fig. 3 size of current of the present utility model and Parking gripping power;
Fig. 4 the utility model control flow chart;
Wherein, 1 is electronics Parking control unit; 2 are the Parking actuating unit; 3 is obliquity sensor; 4 is current sensing means; 5 is ignition signal; 6 are the Parking on-off signal; 7 is shift signal.
The specific embodiment
A kind of vehicle electronic brake system control method provided by the utility model, comprise electronics Parking control unit 1, obliquity sensor 3, Parking actuating unit 2, the first step, described electronics Parking control unit 1 detects ignition signal 5, Parking on-off signal 6, shift signal 7; In second step, described electronics Parking control unit 1 detects obliquity sensor 3 signals; In the 3rd step, described electronics Parking control unit 1 is according to obliquity sensor 3 signals, calculates the corresponding gripping power of described Parking actuating unit 2; In the 4th step, described electronics Parking control unit 1 sends instruction to described Parking actuating unit 2; In the 5th step, described Parking actuating unit 2 begins action, and brake disc is applied the described corresponding gripping power that calculates.In the 6th step, when reaching described corresponding gripping power, described Parking actuating unit 2 keeps these gripping powers.Described electronics Parking control unit 1 detects obliquity sensor 3 signals, calculates the gradient size of the residing physical features of vehicle.Described electronics Parking control unit 1 compares the sizes values of the described gradient and the calibration value of experiment, calculates the Parking gripping power corresponding with this ratio of slope, 2 Parkings of control Parking actuating unit.Described Parking actuating unit 2 comprises motor, described electronics Parking control unit 1 detects the size of the Parking gripping power that described Parking actuating unit 2 applies by sensor, and when the Parking gripping power reached required value, the control motor stopped, otherwise, continue to apply the Parking gripping power.Described sensor is for detecting the current sensor of current of electric, and described electronics Parking control unit 1 calculates the size of Parking gripping power by detected size of current.Described motor comprises idle travel stage and clamping stage, described idle travel stage and described clamping stage are successive, begin to increase with the increase of the electric current of motor at described clamping stage Parking gripping power, when Parking gripping power during to required value, motor stops operating, the electric current vanishing, Parking is finished.
A kind of vehicle electronic brake system, comprise electronics Parking control unit 1 and Parking actuating unit 2, described electronics Parking control unit 1 is connected with described Parking actuating unit 2, is provided with obliquity sensor 3 and current sensing means 4 in the described electronics Parking control unit 1.Described electronics Parking control unit 1 links to each other with ignition signal 5, Parking on-off signal 6, shift signal 7 respectively; Described current sensing means 4 comprises current sensor, and described electronics Parking control unit 1 calculates the size of Parking gripping power by detected size of current.Described electronics Parking control unit 1 detects obliquity sensor 3 signals, calculates the gradient size of the residing physical features of vehicle.Described electronics Parking control unit 1 compares the sizes values of the described gradient and the calibration value of experiment, calculates the Parking gripping power corresponding with this ratio of slope, 2 Parkings of control Parking actuating unit; Described Parking actuating unit 2 comprises motor, described electronics Parking control unit 1 detects the size of the Parking gripping power that described Parking actuating unit 2 applies by sensor, and when the Parking gripping power reached required value, the control motor stopped, otherwise, continue to apply the Parking gripping power.
The utility model be for the vehicle that has been equipped with electronic brake system when the Parking, electronics Parking control unit 1 detects obliquity sensor 3 signals, calculate the gradient size of the residing physical features of vehicle, control Parking actuating unit 2 applies corresponding Parking gripping power and carries out Parking.
The utility model overcomes the fixedly defective of Parking gripping power mode of electronic brake system employing in the past, to improve the performance of electronic brake system.The electronic brake system Parking control method that the utility model relates to mainly comprises the following aspects:
1, detects obliquity sensor 3 signals, calculate the gradient size of the residing physical features of vehicle.
2, electronics Parking control unit 1 compares the sizes values of this gradient and the calibration value of experiment, calculates the Parking gripping power corresponding with this ratio of slope, controls Parking actuating unit 2 and carries out Parking with predetermined Parking gripping power.
3, electronics Parking control unit 1 detects the size of the Parking gripping power that Parking actuating unit 2 applies by sensor, and when the Parking gripping power reached required value, the control motor stopped.
The value of obliquity sensor 3 when demarcating vehicle by experiment and being positioned on the ramp that the gradient varies in size, and the Parking gripping power corresponding with the gradient.
Fig. 1 is the system architecture diagram of the designed a kind of electronic brake system of the utility model and Parking control method.Electronic brake system is made up of electronics Parking control unit 1 and Parking actuating unit 2, wherein electronic control unit 1 is integrated obliquity sensor 3 and current sensing means 4.Obliquity sensor 3 is for detection of the size of the vehicle ramp of living in gradient, and this signal is passed to treater.Current sensing means 4 is for detection of the running current of motor in the Parking actuating unit 2, and electronics Parking control unit is known the Parking gripping power of Parking actuating unit by this signal.The Parking signal derives from ignition signal 5, Parking switch 6, shift signal 7.
Fig. 2 is vehicle body of the present utility model physical features gradient size of living in and Parking gripping power corresponding relation figure.Transverse axis is gradient size among the figure, and the longitudinal axis is Parking gripping power size.The utility model is divided into several scopes (as shown being three scopes) with the gradient, applies different Parking gripping powers in different gradient scopes.
Fig. 3 is the corresponding relation figure of current of electric size of the present utility model and Parking gripping power.Motor is through starting process, at t
1After enter the idle travel stage, t
2The Parking gripping power begins to increase with the increase of the electric current of motor constantly, and when Parking gripping power during to required value, motor stops operating, the electric current vanishing, and Parking is finished.
The control flow chart of a kind of electronic brake system Parking control method that Fig. 4 designs for the utility model.After the Parking signal produced, electronics Parking control unit 1 execution in step S1 gathered obliquity sensor signal 3.Step S2 after electronics Parking control unit 1 is gathered obliquity sensor signal 3, compares obliquity sensor signal 3 and experimental calibration value, calculates the gradient size of the residing physical features of vehicle.Execution in step S3 then, electronics Parking control unit 1 calculates vehicle needed Parking gripping power on this ramp according to the result of previous step.Next enter step S4, control Parking actuating unit 2 carries out Parking.And then in step S5, electronics Parking control unit 1 judges by the motor operating current that detects the Parking actuating unit whether the Parking gripping power has reached required value.If reach required value, then finish this process; If no, then continue to judge, till reaching required value.
Above embodiment is only unrestricted in order to the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, the utility model is made amendment or is equal to replacement, and not breaking away from spirit and scope of the present utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (3)
1. vehicle electronic brake system, comprise electronics Parking control unit (1) and Parking actuating unit (2), it is characterized in that, described electronics Parking control unit (1) is connected with described Parking actuating unit (2), and described electronics Parking control unit (1) includes obliquity sensor (3) and current sensing means (4).
2. a kind of vehicle electronic brake system according to claim 1 is characterized in that, described electronics Parking control unit (1) links to each other with ignition signal (5), Parking on-off signal (6), shift signal (7) respectively; Described current sensing means (4) comprises current sensor, and described electronics Parking control unit (1) calculates the size of Parking gripping power by detected size of current.
3. a kind of vehicle electronic brake system according to claim 2, it is characterized in that, described electronics Parking control unit (1) compares the sizes values of the gradient and the calibration value of experiment, calculate the Parking gripping power corresponding with this ratio of slope, the Parking of control Parking actuating unit (2); Described Parking actuating unit (2) comprises motor, described electronics Parking control unit (1) detects the size of the Parking gripping power that described Parking actuating unit (2) applies by sensor, when the Parking gripping power reaches required value, the control motor stops, otherwise, continue to apply the Parking gripping power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574339 CN203157970U (en) | 2012-11-02 | 2012-11-02 | Electronic parking brake system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574339 CN203157970U (en) | 2012-11-02 | 2012-11-02 | Electronic parking brake system for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203157970U true CN203157970U (en) | 2013-08-28 |
Family
ID=49019179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574339 Expired - Lifetime CN203157970U (en) | 2012-11-02 | 2012-11-02 | Electronic parking brake system for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203157970U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923111A (en) * | 2012-11-02 | 2013-02-13 | 芜湖伯特利汽车安全系统有限公司 | Electrical park brake (EPB) for vehicles and control method |
| CN110962816A (en) * | 2018-09-28 | 2020-04-07 | 罗伯特·博世有限公司 | Parking brake system for vehicle and control method thereof |
| CN113165629A (en) * | 2018-12-17 | 2021-07-23 | 罗伯特·博世有限公司 | Method for operating an automated parking brake and corresponding device |
| WO2024078638A1 (en) * | 2022-10-13 | 2024-04-18 | 芜湖伯特利汽车安全系统股份有限公司 | Clamping force estimation method and system, and vehicle |
-
2012
- 2012-11-02 CN CN 201220574339 patent/CN203157970U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923111A (en) * | 2012-11-02 | 2013-02-13 | 芜湖伯特利汽车安全系统有限公司 | Electrical park brake (EPB) for vehicles and control method |
| CN102923111B (en) * | 2012-11-02 | 2016-08-03 | 芜湖伯特利汽车安全系统股份有限公司 | A kind of vehicle electronic parking braking system and control method |
| CN110962816A (en) * | 2018-09-28 | 2020-04-07 | 罗伯特·博世有限公司 | Parking brake system for vehicle and control method thereof |
| CN113165629A (en) * | 2018-12-17 | 2021-07-23 | 罗伯特·博世有限公司 | Method for operating an automated parking brake and corresponding device |
| CN113165629B (en) * | 2018-12-17 | 2023-08-29 | 罗伯特·博世有限公司 | Method for operating an automated parking brake and corresponding device |
| WO2024078638A1 (en) * | 2022-10-13 | 2024-04-18 | 芜湖伯特利汽车安全系统股份有限公司 | Clamping force estimation method and system, and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Patentee after: BETHEL AUTOMOTIVE SAFETY SYSTEMS Co.,Ltd. Address before: 241009 Wuhu economic and Technological Development Zone, Anhui, No. 19 Taishan Road Patentee before: WUHU BETHEL AUTOMOTIVE SAFETY SYSTEMS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |