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Electric brake booster with pedal behavior simulator

A technology of electric brakes and boosters, which is applied in the directions of brakes, brake transmissions, transportation and packaging, etc., and can solve the problems of driver's bad feeling and affecting the transmission efficiency of brake booster

Pending Publication Date: 2021-07-16
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This affects the efficiency with which the brake boost is delivered and may also give the driver a bad feeling with their foot on the brake pedal

Method used

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  • Electric brake booster with pedal behavior simulator
  • Electric brake booster with pedal behavior simulator
  • Electric brake booster with pedal behavior simulator

Examples

Experimental program
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Embodiment Construction

[0021] Some possible implementations of the present application are described below with reference to the accompanying drawings. It should be pointed out that the accompanying drawings are only for reflecting the principle of the application, rather than showing the actual structure of the application. Accordingly, the drawings are not to scale; and, for clarity, some details are exaggerated and others omitted.

[0022] First of all, it needs to be pointed out that in this application, "rear side" refers to the side kinematically close to the brake pedal of the vehicle, and "front side" refers to a side kinematically away from the brake pedal, that is, close to the brake master cylinder. side.

[0023] Such as figure 1 , 2 As shown, a decoupled electric brake booster used in a vehicle braking system according to a possible implementation of the present application is used to transmit output force to the piston 2 of the brake master cylinder 1 of the vehicle hydraulic brakin...

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PUM

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Abstract

An electric brake booster for use in a vehicle includes: a brake motor; an assistance transmission mechanism which is configured to be suitable for being driven by the brake motor to move in the axial direction; a pedal behavior simulator which is configured to be suitable for being driven by a brake pedal to move in the axial direction; a detection device configured to detect an axial movement of the pedal behavior simulator; and a control unit configured to control the brake motor to execute a motor brake operation mode based on the axial movement of the pedal behavior simulator detected by the detection device, wherein in the motor braking operation mode, only the braking assisting power generated by the motor forms the input force of the electric braking booster; and the pedal behavior simulator is configured to be suitable for being driven by the brake pedal to generate axial movement which can be detected by the detection device on one hand, and transmitting a counter-acting force which can be sensed by the foot of the driver and reflects the braking state of the vehicle to the foot of the driver through the brake pedal on the other hand.

Description

technical field [0001] The present application relates to a vehicle electric brake booster, which has a pedal behavior simulator, which can be used to detect the driver's braking intention, and to feed back the tactile sensation corresponding to the vehicle braking state to the driver's feet . Background technique [0002] Some vehicles add an electric brake booster to their hydraulic braking system, which utilizes an electric motor as the source of brake boost. In the existing electric brake booster, the brake booster and the pedal force usually have a coupled transmission line, that is, they are transmitted to the brake master cylinder piston through some common force transmission elements. For such an electric brake booster, when the driver performs a braking operation, the driver depresses the brake pedal to apply pedal force, the motor of the electric brake booster generates brake boost, and the pedal force and brake boost are combined. transmitted to the brake master...

Claims

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Application Information

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IPC IPC(8): B60T13/74B60T8/40
CPCB60T13/74B60T8/4081
Inventor 陶垚
Owner ROBERT BOSCH GMBH
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