CN210852420U - Electric power-assisted brake system - Google Patents
Electric power-assisted brake system Download PDFInfo
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- CN210852420U CN210852420U CN201920781271.3U CN201920781271U CN210852420U CN 210852420 U CN210852420 U CN 210852420U CN 201920781271 U CN201920781271 U CN 201920781271U CN 210852420 U CN210852420 U CN 210852420U
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Abstract
The utility model discloses an electronic helping hand braking system, including brake master cylinder body etc, the motor passes through on the vice transmission moment of torsion of gear to the screw, the screw is connected in the screw fit in order turning into the moment of torsion of the vice transmission of gear on the output pole of thrust use lead screw one end, the output pole transmits thrust for the brake master cylinder piston of one end in order to produce the required hydraulic pressure force of braking, shift fork one end links to each other with the footboard and obtains the input intention, the shift fork other end links to each other transmission input intention and input force with the input pole, the magnetic substance links to each other with the change of reflection input displacement with the push rod, the sensor chip is installed in the sensor with the displacement change of output magnetic. The utility model realizes the electric power-assisted braking of the vehicle, and can be matched with the whole vehicle to recover the relevant energy without the support of ESC; the whole energy recovery process becomes controllable, and the energy recovery process can be intervened at any time according to requirements; can ensure the foot feeling consistency under various conditions and in the whole actuating process.
Description
Technical Field
The utility model relates to a braking system's field, concretely relates to electronic helping hand braking system.
Background
The electric power-assisted system that adopts on the existing market mainly has: the Honda hybrid vehicle brake system adopts a double-brake master cylinder mode to realize functions; bose realized by ibooster + esc hev; nasen uses an idle stroke approach to achieve braking energy recovery.
The prior art scheme mainly has the following disadvantages: the Honda hybrid vehicle brake system adopts a double-brake master cylinder mode to realize functions, so that the cost is high, and the requirement on the installation position is high; the bosch adopts the ibooster + esc hev mode to realize, and the ibooster + esc hev mode must be used together to realize the corresponding function, so that the application condition of the product is limited; narsen uses a lost motion mode to realize the function of energy recovery, but the situation of stepping too deep can occur when the energy recovery device fails, and the panic of a user is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide an electronic helping hand braking system.
The purpose of the utility model is accomplished through following technical scheme: the electric power-assisted brake system mainly comprises a brake master cylinder body, a brake master cylinder piston, an electromagnetic valve, a liquid storage cavity, a motor, a gear, a box body, a force output rod, an upper cover, a push rod, an input rod, a shifting fork, a nut, a screw rod, a bearing, a second clamping ring, a flat key, a gear pair, a sensor chip and a magnetic body, wherein an output shaft of the motor is connected with the gear; the U-shaped groove size of the output rod is adjusted as required, when braking compensation is needed, the motor drives the nut to rotate through the gear driving gear pair, so that the screw rod is pushed to advance, the output rod is pushed, and the existence of the U-shaped groove does not affect the push rod, so that the input rod and the shifting fork are not driven to move. A liquid storage cavity and an electromagnetic valve are arranged in the cylinder body of the brake master cylinder.
The nut is installed on the bearing to realize positioning and rotation, and one end of the nut is limited by the second clamping ring.
One end of the shifting fork is connected with the pedal to obtain an input intention, the other end of the shifting fork is connected with the input rod to transmit the input intention and an input force, the push rod is connected with the input rod, the magnetic body is connected with the push rod to reflect the change of input displacement, and the sensor chip is installed in the sensor to output the displacement change of the magnetic body.
The components are arranged in the box body and sealed through the upper cover, and the brake master cylinder piston is arranged in the brake master cylinder body.
An elastic body A is arranged between the push rod and the input rod so as to simulate the jumping value function of the vacuum booster through prepressing.
An elastic body B is installed in the upper cover, prepressing is carried out through a first clamping ring, the elastic body B serves as a simulation element of pedal feedback force, and a sealing check ring is arranged on the inner side of the first clamping ring and serves as dust prevention.
The push rod and the input rod are connected in a spherical input mode.
The utility model has the advantages that: the utility model realizes a brand new energy recovery mode, realizes the electric power-assisted braking of the vehicle, can be matched with the whole vehicle to recover the relevant energy without the support of ESC, saves the cost and improves the applicability of the product; a normally closed valve is added on the brake master cylinder, so that the whole energy recovery process becomes controllable, and the energy recovery process can be intervened at any time according to requirements; the spring is used as the foot feeling simulation, so that the foot feeling consistency in the whole actuation process under various conditions can be ensured; the power assisting system adopts a split decoupling mode to realize that the feeling of feet is not influenced when hydraulic compensation action is carried out, and the user is ensured not to feel disharmony in the using process.
Drawings
Fig. 1 is a structural sectional view of the present invention.
Fig. 2 is an appearance schematic diagram of the present invention.
Fig. 3 is a sectional view of the structure of the present invention.
Fig. 4 is a schematic structural view of the periphery of the output rod of the present invention.
Description of reference numerals: the brake master cylinder comprises a brake master cylinder body 101, a brake master cylinder piston 102, a solenoid valve 103, a liquid storage cavity 104, a motor 201, a gear 202, a box body 3, a force output rod 4, a U-shaped groove 401, an elastic body A5, an upper cover 7, an elastic body B801, a sealing retainer ring 802, a first collar 803, a push rod 901, an input rod 902, a shifting fork 903, a nut 10, a lead screw 11, a bearing 12, a second collar 1201, a flat key 13, a gear pair 14, a sensor 15, a sensor chip 1501 and a magnetic body 16.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in the attached drawings, the electric power-assisted brake system mainly comprises a brake master cylinder body 101, a brake master cylinder piston 102, an electromagnetic valve 103, a liquid storage cavity 104, a motor 201, a gear 202, a box body 3, an output rod 4, an upper cover 7, a push rod 901, an input rod 902, a shifting fork 903, a nut 10, a lead screw 11, a bearing 12, a collar II 1201, a flat key 13, a gear pair 14, a sensor 15, a sensor chip 1501 and a magnetic body 16, wherein an output shaft of the motor 201 is connected with the gear 202, the gear 202 transmits torque to the nut 10 through the gear pair 14, the gear pair 14 is connected with the nut 10 through the flat key 13, the nut 10 is arranged on the bearing 12 to realize positioning and rotation, one end of the nut 10 is limited through the collar II 1201, the lead screw 11 is matched and connected with the lead screw 10 to convert the torque transmitted by the gear pair 14 into thrust to be applied to the output rod 4 at one end of the lead screw 11, the output, the output rod 4 is provided with a U-shaped groove 401. The output rod 4 transmits the thrust to the master cylinder piston 102 at one end to generate hydraulic pressure required for braking, one end of a shifting fork 903 is connected with a pedal to obtain an input intention, the other end of the shifting fork 903 is connected with an input rod 902 to transmit the input intention and the input force, a push rod 901 is connected with the input rod 902, and an elastomer A5 is arranged between the push rod 901 and the input rod 902 to simulate the jump value function of the vacuum booster through pre-pressing. The push rod 901 and the input rod 902 are connected by a spherical input mode. The magnetic body 16 is connected with the push rod 901 to reflect the change of input displacement, the sensor chip 1501 is installed in the sensor 15 to output the change of displacement of the magnetic body 16, the components are installed in the box body 3 and sealed through the upper cover 7, the elastic body B801 is installed in the upper cover 7 and pre-pressed through the first clamping ring 803, the elastic body B801 is used as a simulation element of pedal feedback force, and the sealing retaining ring 802 is arranged on the inner side of the first clamping ring 803 to be dustproof. The brake master cylinder piston 102 is disposed in the brake master cylinder body 101, and the reservoir 104 and the solenoid valve 103 are disposed in the brake master cylinder body 101.
The utility model discloses the theory of operation:
when the electric system fails, the pedal force is transmitted to the fork 903, then to the input rod 902, then to the push rod 901, and then to the output rod 4, and thus acts on the master cylinder piston 102, thereby forming the brake hydraulic pressure.
During normal braking, input intention on the pedal is transmitted to the push rod 901 to drive the magnetic body 16 to move, the sensor chip 1501 senses displacement of the magnetic body 16 to generate a signal, and the signal is transmitted to the ECU, so that the action of the motor 201 is controlled, the gear pair 14 is driven to rotate, and thrust is generated under the matching of the screw 10 and the screw rod 11 to form assistance force.
During active braking, the ECU receives signals transmitted from the outside, controls the action of the motor 201, further drives the gear pair 14 to rotate, and generates thrust under the matching of the nut 10 and the screw rod 11, thereby forming assistance.
At the time of braking energy recovery, the solenoid valve 103 is opened, so that the brake fluid is stored in the reservoir chamber 104, and a braking torque is generated by the vehicle motor. The output rod 4 is provided with a U-shaped groove 401, so that the push rod 901 can not be interfered when the braking torque compensation is needed, and the change of the pedal position is avoided.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (7)
1. An electric power-assisted brake system characterized in that: the brake master cylinder mainly comprises a brake master cylinder body (101), a brake master cylinder piston (102), an electromagnetic valve (103), a liquid storage cavity (104), a motor (201), a gear (202), a box body (3), a thrust rod (4), an upper cover (7), a push rod (901), an input rod (902), a shifting fork (903), a nut (10), a screw rod (11), a bearing (12), a second collar (1201), a flat key (13), a gear pair (14), a sensor (15), a sensor chip (1501) and a magnetic body (16), wherein an output shaft of the motor (201) is connected with the gear (202), the gear (202) transmits torque to the nut (10) through the gear pair (14), the gear pair (14) is connected with the nut (10) through the flat key (13), the screw rod (11) is connected in the nut (10) in a matching manner to convert the torque transmitted by the gear pair (14) into thrust to the thrust rod (4) at one end of the screw rod (11), the output rod (4) transmits the thrust to a brake master cylinder piston (102) at one end to generate hydraulic pressure required by braking; the output rod (4) and the screw rod (11) are two separated parts, and a U-shaped groove (401) is formed in the output rod (4); the size of a U-shaped groove (401) of the output rod (4) is adjusted as required, when braking compensation is needed, a motor (201) drives a gear pair (14) through a gear (202) to drive a nut (10) to rotate, so that a lead screw (11) is pushed to advance, the output rod (4) is pushed to ensure that an input rod (902) and a shifting fork (903) are not driven to move, and a liquid storage cavity (104) and an electromagnetic valve (103) are arranged in a brake main cylinder body (101).
2. An electrically assisted brake system according to claim 1, characterized in that: the nut (10) is installed on the bearing (12) to achieve positioning and rotation, and one end of the nut (10) is limited through the second clamping ring (1201).
3. An electrically assisted brake system according to claim 1, characterized in that: one end of the shifting fork (903) is connected with the pedal to obtain an input intention, the other end of the shifting fork (903) is connected with the input rod (902) to transmit the input intention and an input force, the push rod (901) is connected with the input rod (902), the magnetic body (16) is connected with the push rod (901) to reflect the change of input displacement, and the sensor chip (1501) is installed in the sensor (15) to output the displacement change of the magnetic body (16).
4. An electrically assisted brake system according to claim 1, characterized in that: the components are arranged in a box body (3) and sealed by an upper cover (7), and a brake master cylinder piston (102) is arranged in a brake master cylinder body (101).
5. An electrically assisted brake system according to claim 1, characterized in that: an elastic body A (5) is arranged between the push rod (901) and the input rod (902) to simulate the jump value function of the vacuum booster through pre-pressing.
6. An electrically assisted brake system according to claim 1, characterized in that: an elastic body B (801) is installed in the upper cover (7) and is pre-pressed through a first clamping ring (803), the elastic body B (801) is used as a simulation element of pedal feedback force, and a sealing retaining ring (802) is arranged on the inner side of the first clamping ring (803) and is used for dust prevention.
7. An electrically assisted brake system according to claim 1, characterized in that: the push rod (901) and the input rod (902) are connected in a spherical input mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920781271.3U CN210852420U (en) | 2019-05-28 | 2019-05-28 | Electric power-assisted brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920781271.3U CN210852420U (en) | 2019-05-28 | 2019-05-28 | Electric power-assisted brake system |
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| Publication Number | Publication Date |
|---|---|
| CN210852420U true CN210852420U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920781271.3U Active CN210852420U (en) | 2019-05-28 | 2019-05-28 | Electric power-assisted brake system |
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| Country | Link |
|---|---|
| CN (1) | CN210852420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203188A (en) * | 2019-05-28 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of electric booster braking system |
-
2019
- 2019-05-28 CN CN201920781271.3U patent/CN210852420U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110203188A (en) * | 2019-05-28 | 2019-09-06 | 万向钱潮股份有限公司 | A kind of electric booster braking system |
| CN110203188B (en) * | 2019-05-28 | 2023-10-27 | 万向钱潮股份公司 | Electric power-assisted braking system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Qianchao Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: WANXIANG QIANCHAO Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Wanxiang Qianchao Co.,Ltd. Patentee after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Patentee before: WANXIANG QIANCHAO Co.,Ltd. Patentee before: WANXIANG GROUP Co.,Ltd. |