Vehicle speed limiting system and method

Abstract

The invention provides a vehicle speed limiting system and method. The vehicle speed limiting system can comprise an electronic body stabilizing system, a combined instrument system, an engine management system and an engine, which are connected with each other in sequence in a closed loop. After receiving a vehicle speed setting signal, the combined instrument system sets and displays a target limited vehicle speed on a human-computer interface and transmits the target limited vehicle speed to the engine management system; after an instrument indicated vehicle speed is calculated according to an actual vehicle speed transmitted by the electronic body stabilizing system during the running of a vehicle, the instrument indicated vehicle speed is transmitted to the engine management system; the engine management system calculates the difference value between the instrument indicated vehicle speed and the target limited vehicle speed; and if the difference value is a negative number, the engine management system responds to the opening of an accelerator pedal; and if the difference value is a positive number, the the engine management system transmits a fuel-injection quantity closed-loop control signal to the engine. As the target limited vehicle speed is set by the human-computer interface and the vehicle speed limitation is realized through difference value closed-loop calculation, the invention is advantaged in that double-way operation functions of a power system and human-computer interaction are obtained and the driving safety is enhanced.

Description

technical field [0001] The invention relates to the technical field of electronic appliances, in particular to a vehicle speed limiting system and method. Background technique [0002] Drivers are prone to mental fatigue during long-time driving, and mental distraction and driving fatigue often cause drivers to step on the accelerator too deeply without knowing it, resulting in overspeeding. For drivers, overspeeding not only brings The trouble of speeding tickets, but also driving safety hazards. [0003] However, the existing vehicle speed limit method is mainly a mechanical way by limiting the opening of the accelerator pedal. Therefore, the driver will have a sense of mechanical hindrance when stepping on the accelerator pedal, and the mechanical hindrance will easily lead the driver to understand mechanical failure. As a result, the utilization rate of the speed limit function is low, the applicability is poor, and the safety problem of driving cannot be really solved....

AI Technical Summary

Problems solved by technology

[0002] Drivers are prone to mental fatigue during long-time driving, and mental distraction and driving fatigue often cause drivers to step on the accelerator too deeply without knowing it, resulting in overspeeding. For drivers, overspeeding not only brings The trouble of speeding tickets, but also the hidden dangers of driving safety

[0003] However, the existing vehicle speed limit method is mainly a mechanical way by limiting the opening of the accelerator pedal. Therefore, the driver will have a sense of mechanical hindrance when stepping on the accelerator pedal, and the mechanical hindrance will easily lead the driver to understand mechanical failure. As a result, the utilization rate of the speed limit function is low, the applicability is poor, and the safety problem of driving cannot be really solved.

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