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 prompting system, in particular to an electric vehicle braking intelligent prompting system which transmits the braking deceleration information of a front vehicle to a rear vehicle. Background technique [0002] With the congestion of urban traffic, the braking system is used more and more when the car is running. Mainstream brakes mainly use a single brightness and color brake light to prompt the rear car, which often causes the rear car to be unable to accurately obtain information on the braking strength of the front car, resulting in traffic accidents such as rear-end collisions. At present, there are two types of brake lights with brake deceleration prompting function. One is to collect the brake pedal position signal, convert it into braking strength, and reflect it through the brightness or color change of the brake light to achieve The function of reminding the car behind; the o...

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

Images