Intelligent prompting system for brake of electric vehicle

Abstract

The invention discloses an intelligent prompting system for brake of an electric vehicle. The intelligent prompting system comprises a front-vehicle system and a rear-vehicle system, wherein the front-vehicle system comprises a front-vehicle whole-vehicle controller, a front-vehicle engine controller, a front-vehicle motor controller, a front-vehicle accelerator pedal position sensor, a front-vehicle brake pedal position sensor, a front-vehicle battery energy management system, a front-vehicle ABS (antilock brake system) controller and a front-vehicle wireless transmission device; the rear-vehicle system comprises a rear-vehicle wireless receiving device; the front-vehicle whole-vehicle controller calculates the brake deceleration of a front vehicle and transmits the brake deceleration of the front vehicle to the front-vehicle wireless transmission device; the front-vehicle wireless transmission device transmits the brake deceleration information of the front vehicle to the rear-vehicle wireless reception device; and the rear-vehicle wireless reception device displays the brake deceleration information of the front vehicle via a rear-vehicle display instrument. Via the intelligent prompting system for the brake of an electric vehicle disclosed by the invention, a rear vehicle can know the condition of the brake deceleration of the front vehicle during a driving process of the electric vehicle, thus measures can be adopted in time, and then traffic accidents such as rear-end collision during the emergency brake of the front vehicle are avoided.

Description

Technical field [0001] The invention relates to an electric vehicle braking information prompt system, in particular to an electric vehicle braking intelligent prompt system that transmits the braking deceleration information of the preceding vehicle to the following vehicle. Background technique [0002] With the congestion of urban traffic, the braking system is used more and more when the car is driving. Mainstream brakes mainly use single-brightness and color brake lights to prompt the following vehicles, which often causes the following vehicles to fail to accurately obtain information on the braking strength of the preceding vehicle, resulting in rear-end collisions and other traffic accidents. At present, there are two types of brake lights with the brake deceleration prompt function. One is to collect the brake pedal position signal and convert it into the brake intensity, which is reflected by the brightness or color change of the brake light. The function of prompting ...

AI Technical Summary

Problems solved by technology

The electric vehicle braking system includes multiple braking sources, such as motor braking, hydraulic braking and engine anti-drag braking. The braking effect cannot be judged simply from the position of the brake pedal and the pressure of the hydraulic oil circuit, but If the acceleration sensor is added, it will cause false display on the slope

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