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A brake assist actuator for an unmanned vehicle

A technology of unmanned vehicles and actuators, which is applied to vehicle components, brake transmission devices, foot-operated start devices, etc., and can solve the problems of unmanned driving development restrictions and other issues

Inactive Publication Date: 2018-12-25
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the lack of infrastructure will limit the development of unmanned driving

Method used

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  • A brake assist actuator for an unmanned vehicle
  • A brake assist actuator for an unmanned vehicle
  • A brake assist actuator for an unmanned vehicle

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Embodiment Construction

[0031] 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 and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as Figure 1-Figure 3 As shown, an unmanned vehicle brake auxiliary actuator includes:

[0033] Motor 1, in this example, a two-axis output servo motor is used;

[0034] The transmission mechanism includes a ball screw 5 connected to the output shaft of the motor 1 (the ball screw and the motor are connected through a flexible coupling 16), a slide table 12 threaded on the ball screw 5, and a slide table 12 for supporting the slide The linear guide rail 14 of the table 12, the ball screw 5 converts the rotary motion of the motor 1 into the reciprocating linear motion of the slide tabl...

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Abstract

The invention discloses an unmanned vehicle brake assist actuator, comprising: an electric motor; A ball screw, a slide table threaded to the ball screw and a linear guide rail; A pulling pressure sensor mounted on the sliding table for collecting pulling force information of the pedal cable in real time; A displacement sensor for collecting the displacement information of the tension pressure sensor in real time; A pedal cable, one end of which is connected with a tension pressure sensor and the other end of which is connected with a brake pedal mounted on the bottom plate of the cab; A controller that sends an on signal or a stop signal to the motor and receives displacement information sent by the displacement sensor and tension information sent by the tension sensor. The brake assist actuator realizes the mechanical movement of the motor, the transmission mechanism, the pedal cable and the like through the instructions issued by the controller, and then pulls the brake pedal movement, and carries out the feedback of the accurate pedal depth and the pedal force through the tension pressure sensor and the displacement sensor, and finally realizes the accurate automatic control function of the brake pedal in the automobile unmanned driving.

Description

technical field [0001] The invention belongs to the technical field of automobile manufacturing, and in particular relates to an auxiliary braking device for an unmanned vehicle. Background technique [0002] At present, it is known that the movement of the brake pedal is driven by the driver's feet, and when braking is required, the driver pushes the brake pedal to move, thereby realizing the braking function. However, with the rise of unmanned driving, many vehicles have also introduced unmanned driving technology to reduce manual operations and provide convenience for life. At present, many universities and scientific research institutions have invested a lot of money in the research of unmanned driving, most of which are biased towards the research of automotive electronic control, and less about the design of mechanical structures. However, the lack of basic institutions will limit the development of unmanned driving. Contents of the invention [0003] The purpose o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/06B60T13/74
CPCB60T7/06B60T13/746
Inventor 华林王少博邹斌卢炽华冯永刚
Owner WUHAN UNIV OF TECH
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