Coach vehicle speed limiting system capable of adjusting limited vehicle speed

Abstract

The invention discloses a coach vehicle speed limiting system capable of adjusting a limited vehicle speed. The coach vehicle speed limiting system comprises a throttle valve motor, an engine control unit, an accelerator pedal position sensor, a normally-closed contact relay, a speed limiting control keyboard, a speed limiting control unit and a vehicle speed sensor. The signal output end of the speed limiting control keyboard is connected with the speed limiting control unit, the signal output end of the vehicle speed sensor is connected with the speed limiting control unit, one signal output end of the accelerator pedal position sensor is selectively connected with the engine control unit through the normally-closed contact relay, another signal output end of the accelerator pedal position sensor is connected with the speed limiting control unit, the speed limiting control unit is connected with the engine control unit, and the control input end of the throttle valve motor is connected with the engine control unit. A function of limiting the speed of a coach vehicle is achieved by adjusting air inflow of an engine, the limited vehicle speed is adjustable, limiting reaction is sensitive, and road accidents caused by overspeeding and misoperation by trainees can be effectively avoided.

Description

technical field [0001] The invention relates to a speed-limiting system for a coach car with adjustable speed-limiting, and belongs to the technical field of vehicle speed-limiting. Background technique [0002] At present, with the popularity of cars and the improvement of people's living standards, more and more cars have entered the families of ordinary people, which has promoted the rapid development of the car driver training industry. At the same time, with the emergence of a large number of driver training companies and the widespread use of coach cars, there have been many speeding violations and traffic accidents caused by trainees' inexperience and improper operation. A major traffic accident phenomenon caused by stepping on the gas pedal. Therefore, the speed limit and brake should be installed on the coach to prevent accidental stepping on the accelerator device. [0003] The Chinese patent with the authorized announcement number CN 201646410 U discloses a ...

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Problems solved by technology

[0003] The Chinese patent with the authorized announcement number CN 201646410 U discloses a motor vehicle speed limit intelligent control system, which is provided with a speed limit control system on the motor vehicle, a needle regulating valve is arranged in the oil supply pipeline, and the speed limit control system They are respectively connected with the speedometer and the regulating valve. In the case of speed limit, the control system closes or opens the regulating valve to achieve the purpose of limiting the speed of the vehicle. It has the advantages of simple structure, convenient use, and safety. Electronically controlled fuel injection system, if the fuel supply is forcibly reduced while the intake air volume remains unchanged, it will cause the mixture to be too lean and affect the working performance of the engine

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