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Unmanned vehicle braking control system and method

An unmanned vehicle, braking control technology, applied in the direction of braking safety systems, brakes, vehicle components, etc., can solve the problems of inability to achieve braking deceleration control, large transmission cumulative error, complex transmission scheme, etc., to achieve braking force The transmission system is simple, the transmission efficiency is improved, and the structure is simple

Active Publication Date: 2017-05-31
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

Although this technical solution can also realize the braking of the vehicle, the main function of the worm gear mechanism and the rack and pinion mechanism is to transmit force and torque. In terms of transmission accuracy, the accuracy of the two is relatively poor, and the technical solution The transmission scheme is relatively complex, and the cumulative transmission error is relatively large. Therefore, although the technical solution uses the force sensor as the detection of the braking force, the detected braking force cannot be used as the feedback amount and control amount of the braking force control, so accurate braking and deceleration cannot be achieved. control

Method used

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  • Unmanned vehicle braking control system and method
  • Unmanned vehicle braking control system and method

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Embodiment Construction

[0034] A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Such as figure 1 As shown, the braking control system of an unmanned vehicle includes an electric cylinder 1, a braking pipeline system 2, a data acquisition card 3, a controller 4 and a decision-making layer 5, and a wheel speed sensor 6 for detecting vehicle speed and for detecting The oil pressure gauge 7 for the braking pressure of the brake pipeline system, wherein the brake pipeline system 2 includes the brake master cylinder 21, and the front wheel brake sub-cylinder 23 and the rear wheel brake cylinder 23 respectively communicated with the brake master cylinder 21 through the oil pipe 22 Wheel brake cylinder 24.

[0036] The electric cylinder 1 is connected with the brake master cylinder 21 through an adapter 8, and a force sensor 9 is installed on the adapter, the force sensor is connected to the data acquisition card 3 signal...

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Abstract

The invention provides an unmanned vehicle braking control system and method. The unmanned vehicle braking control system comprises an electric cylinder, a braking pipeline system, a data collection card, a controller, a decision making layer, a wheel speed sensor for detecting vehicle speed and an oil pressure meter for detecting braking pressure of the braking pipeline system, the data collection card is used for collecting data of the wheel speed sensor and the oil pressure meter, the decision making layer sends an expected vehicle speed signal to the controller, and the controller is used for collecting data transmitted by the decision making layer and data of the oil pressure meter. Braking effect controllable in braking force is accurately realized by collecting current vehicle speed and current braking pressure, comparing them with expected vehicle speed and expected braking pressure and controlling extension and contraction of the electric cylinder.

Description

technical field [0001] The invention relates to the technical field of vehicle braking control, in particular to a braking control system and method for an unmanned vehicle. Background technique [0002] An unmanned vehicle is an intelligent vehicle that perceives the road environment through an on-board sensor system, automatically plans a driving route, and controls the vehicle to reach a predetermined target. It uses on-board sensors to perceive the surrounding environment of the vehicle, and controls the steering and speed of the vehicle based on the road, vehicle position and obstacle information obtained from the perception, so that the vehicle can drive safely and reliably on the road. Integrating many technologies such as automatic control, architecture, artificial intelligence, and visual computing, it is a product of the highly developed computer science, pattern recognition, and intelligent control technologies. It is also an important symbol to measure a country'...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12B60T17/22B60T13/12B60T13/74B60W30/06
CPCB60T7/12B60T13/12B60T13/745B60T17/22B60T2250/04B60W30/06
Inventor 梁华为张辉丁袆徐照胜丁骥陶翔刘伟
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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