A vehicle predictive cruise control method based on high-precision map

Abstract

The invention relates to a vehicle foresight cruise control method based on a high-precision map. The vehicle foresight cruise control method includes the following steps of vehicle positioning, map transmission, map reconstruction and foresight cruise vehicle speed planning. According to the vehicle foresight cruise control method, ahead road condition information is predicted in real time basedon a GPS and the high-precision map, the cruise vehicle speed is adaptively adjusted under different working conditions, the relationship between low fuel consumption and high time efficiency is balanced, the transportation cost is saved, the transportation efficiency is improved, and compared with ordinary cruise control, the fuel economy of a vehicle is greatly improved on the basis of ensuringthe time efficiency of the vehicle.

Description

technical field

[0001] The invention relates to the technical field of vehicle control, in particular to a vehicle predictive cruise control method based on GPS and high-precision maps. Background technique

[0002] With the increasing demand for automobiles, the automobile market is increasingly showing unprecedented vitality. The huge number of automobiles brings serious environmental pollution and energy security problems. Taking energy consumption as an example, in 2012 China's total oil consumption was about 490 million tons, and its dependence on imports was as high as 57.8%, while the consumption of automobiles was about 186 million tons, accounting for 37.8% of the total. Regardless of exogenous mandatory regulations or endogenous product innovations, further development of automotive energy-saving and emission-reduction technologies is required. Due to the high fuel consumption of the vehicle itself, if an effective fuel-saving management technology is implemented ...

Examples

Embodiment Construction

[0064] The present invention aims at the predictive cruise function of the vehicle, and recognizes the current position of the vehicle and the road information of X meters ahead according to the global positioning system and the high-precision map, and based on the real-time road condition information on the basis of constant speed cruise, within the acceptable range of the driver Optimize the best speed.

[0065] Such as figure 1 As shown, the high-precision map-based vehicle predictive cruise control method of the present invention comprises the following steps:

[0066] Step 1. Vehicle positioning

[0067] Firstly, the current position of the vehicle is accurately positioned through GPS (Global Positioning System), and the map data information of X meters ahead is obtained according to the high-precision map.

[0068] Step 2. Map transmission

[0069] According to the ADASIS protocol, the map information is effectively transmitted and sent to the controller. The map dat...

technical field

[0001] The invention relates to the technical field of vehicle control, in particular to a vehicle predictive cruise control method based on GPS and high-precision maps. Background technique

[0002] With the increasing demand for automobiles, the automobile market is increasingly showing unprecedented vitality. The huge number of automobiles brings serious environmental pollution and energy security problems. Taking energy consumption as an example, in 2012 China's total oil consumption was about 490 million tons, and its dependence on imports was as high as 57.8%, while the consumption of automobiles was about 186 million tons, accounting for 37.8% of the total. Regardless of exogenous mandatory regulations or endogenous product innovations, further development of automotive energy-saving and emission-reduction technologies is required. Due to the high fuel consumption of the vehicle itself, if an effective fuel-saving management technology is implemented ...

Examples

Embodiment Construction

[0064] The present invention aims at the predictive cruise function of the vehicle, and recognizes the current position of the vehicle and the road information of X meters ahead according to the global positioning system and the high-precision map, and based on the real-time road condition information on the basis of constant speed cruise, within the acceptable range of the driver Optimize the best speed.

[0065] Such as figure 1 As shown, the high-precision map-based vehicle predictive cruise control method of the present invention comprises the following steps:

[0066] Step 1. Vehicle positioning

[0067] Firstly, the current position of the vehicle is accurately positioned through GPS (Global Positioning System), and the map data information of X meters ahead is obtained according to the high-precision map.

[0068] Step 2. Map transmission

[0069] According to the ADASIS protocol, the map information is effectively transmitted and sent to the controller. The map dat...

Images