Constant-speed cruise control system and method based on vehicle-mounted navigation system

Abstract

The invention provides a constant-speed cruise control system and method based on a vehicle-mounted navigation system. The constant-speed cruise control system comprises a loudspeaker host unit, an engine control unit, an ABS controller, a constant-speed cruise control switch and a constant-speed cruise control setting switch. The ABS controller, the constant-speed cruise control switch and the constant-speed cruise control setting switch are connected to the loudspeaker host unit. The loudspeaker host unit is connected to the engine control unit and has a navigation positioning function. The engine control unit stably maintains the vehicle speed within the cruising speed range according to the set cruising speed, detected vehicle speed information and navigation positioning information. According to the constant-speed cruise control system and method, the cruising vehicle speed is set by directly utilizing the limited vehicle speed of a road, and therefore it is ensured that a vehicle can not be driven in an overspeed manner; and gradient information of the road section where the vehicle is located is sufficiently considered during vehicle speed maintaining so that constant-speed control can be more stable and comfortable, the intelligent control level of the constant-speed cruise control system can be greatly improved, and modern vehicle development requirements can be met.

Description

technical field [0001] The invention belongs to the field of automobile control, and in particular relates to a constant-speed cruise system and a constant-speed cruise method based on a vehicle navigation system. Background technique [0002] Introduction to cruise control system: Cruise control system (CRUISE CONTROL SYSTEM) is abbreviated as CCS, also known as cruise control device, speed control system, automatic driving system, etc. Accelerator pedal just keeps vehicle speed automatically, makes vehicle travel with fixed speed. With this device, after driving on the expressway for a long time, the driver no longer needs to control the accelerator pedal, which reduces fatigue, reduces unnecessary speed changes, and effectively saves fuel. With the popularization of vehicle cruise configuration, mid-to-high-end vehicles except low-end cars are basically equipped with cruise control systems. The cruise control systems currently on the market are roughly divided into the f...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the defects existing in the current cruise control system, and mainly solves the following three technical problems: (1) solves the problem of acceleration and deceleration when the cruise control is set and used; (2) adds an automatic speed setting based on the navigation and positioning information Control method; (3) Based on the navigation and positioning information, the control method for the vehicle when going up and downhill is added, and a new constant-speed cruise system and constant-speed cruise method based on the vehicle navigation system are proposed. Instrument, engine controller, gearbox controller to realize the automatic control of vehicle speed, which effectively improves the defects of the existing cruise control system in terms of comfort, fuel economy and convenient operation

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