Electric power-assisted brake device with foot bar assembly stroke feedback mechanism
A technology of electric power boosting and braking devices, which is applied in the direction of braking transmission devices, foot-operated starting devices, braking action starting devices, etc., can solve the problems of difficult mechanism layout, poor stability, small installation space, etc., and achieve structural The effect of stable and reliable setting, low braking force requirement and fast braking response
Pending Publication Date: 2018-08-21
ZHEJIANG SANXING MECHANICAL & ELECTRONICSAL STOCK
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Problems solved by technology
[0005] The sliding stroke of the pedal rod assembly cannot be directly fed back and output, because it is impossible to control the action of the electric booster and brake pump assembly according to the stroke signal, and it is limited by the large number of components in the electric power-assisted braking device and the installation space. Small, the travel switch used to detect the pedal assembly is directly installed in the electric power-assisted braking device, the mechanism layout is difficult, and the stability is not good
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0034] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.
[0035] The terms of direction and position mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom" ", "side", etc., are only referring to the direction or position of the drawings. Therefore, the terms used in direction and position are ...
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The invention discloses an electric power-assisted brake device with a foot bar assembly stroke feedback mechanism. The device comprises a power-assisted cylinder, a foot bar assembly, a foot bar reset spring, an electric booster and a brake pump assembly. A brake pump ejector rod for receiving braking force is arranged on the brake pump assembly, the electric booster comprises a power-assisted sliding sleeve, the power-assisted sliding sleeve is in ejection fit with the brake pump ejector rod, the electric power assembly comprises a motor and a speed reducer in linkage with the output shaft of the motor, a gear shaft is linked to the output shaft of the speed reducer, one side of the outer wall of the power-assisted sliding sleeve is provided with a transmission rack which is in transmission connection with the gear shaft, the device further comprises the foot bar assembly stroke feedback mechanism, and one end of a feedback gear shaft is provided with an angle position sensor for detecting the rotating angle of the feedback gear shaft. The device has the advantages that the structure setting is reasonable, and the foot bar assembly stroke feedback output stability is reliable.
Description
technical field [0001] The invention relates to automobile brake accessories, specifically refers to an electric power-assisted braking device, especially an electric power-assisted braking device with a stroke feedback mechanism of a pedal assembly, which can be used for electric vehicles, hybrid vehicles, and unmanned vehicles Or areas such as intelligent driving cars. Background technique [0002] The braking system of traditional internal combustion engine vehicles mostly uses a vacuum booster device to assist the driver to generate sufficient braking force, and the vacuum source comes from the engine or a mechanical vacuum pump. For new energy vehicles (fuel cell vehicles and pure electric vehicles), there is no engine to provide a vacuum power source to provide braking boost, and the braking force generated by manpower alone cannot meet the needs of service braking. The electric power-assisted braking device can satisfy this demand very well. [0003] For this reason...
Claims
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IPC IPC(8): B60T13/74B60T7/04
CPCB60T13/741B60T7/042
Inventor蔡清理陈奎温正荣董开雷王堆谢作杰杨建辉
OwnerZHEJIANG SANXING MECHANICAL & ELECTRONICSAL STOCK