Automatic braking system for driverless vehicle

Abstract

The invention belongs to a pneumatic braking system and specifically relates to an automatic braking system for a driverless vehicle. The automatic braking system for the driverless vehicle comprisesan electric air compressor, an electric control air treatment unit, an electronic parking memory valve, a front air reservoir, a rear air reservoir, a pressure sensor, an electric control braking electromagnetic valve, a spring brake cylinder, an anti-lock electromagnetic valve, an emergency exhaust electromagnetic valve, a manual exhaust valve, a wheel speed sensor, a brake controller and a frontbrake air chamber. The automatic braking system for the driverless vehicle is a vehicle for a driverless operating mechanism; the vehicle has no steering wheel, braking and accelerator pedal, a transmission operator and so on; the automatic braking system for the driverless vehicle satisfies the actual demand of the control of the braking system; and according to the automatic braking system forthe driverless vehicle, automatic braking function can be realized without driver input, the structure of the system can be furthest optimized, the development cost of the system can be reduced, and the shortcomings of an existing automatic braking system are overcome.

Description

technical field [0001] The invention belongs to an air pressure braking system, in particular to an automatic braking system for an unmanned vehicle. Background technique [0002] With the continuous improvement of vehicle technology, the application of unmanned driving technology in the automotive field is becoming more and more extensive. For commercial vehicles, unmanned driving technology can not only reduce driver fatigue and improve driving safety, but also can effectively optimize the vehicle engine or motor load to achieve the effect of energy saving and emission reduction. [0003] When the driving vehicle encounters obstacles in front of it, the driver can slow down the vehicle to stop or change lanes to avoid the operation according to the road condition information; while the unmanned vehicle needs to realize the function of sensing road condition information based on the vehicle's own camera and radar, etc. And apply automatic braking and / or automatic steering ...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the existing intelligent commercial vehicles in the market are in the conventional braking system of manned driving. The existing anti-lock solenoid valve or the addition of electromagnetic relay valve and other components are used to obtain the automatic braking function of the unmanned mode. Although commercial vehicles have both manned driving and unmanned driving modes, which can be switched according to the needs of the driver, there are disadvantages in the unmanned driving mode, such as the anti-lock brake solenoid valve having a short service life and the electromagnetic relay valve having a complex structure and high cost.

For commercial vehicles used under certain working conditions, such as special-purpose work vehicles traveling on specified routes for a long time, the components such as brake pedals and brake valves in the existing system have redundant structures, which may easily cause power batteries or body parts to be damaged. The layout space of equipment and other equipment is tight, and most OEMs often sacrifice the use of space for function realization by reducing the size of the cargo box.

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