Self-adaptive cruise control system and self-adaptive cruise control system method for electric automobile based on car networking
An adaptive cruising and electric vehicle technology, applied in specific environment-based services, control devices, transmission systems, etc., can solve problems such as loose integration and unsatisfactory road condition information acquisition, and achieve energy saving and extended driving The effect of miles
Active Publication Date: 2019-02-22
JILIN UNIV
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Problems solved by technology
[0004]
In order to overcome the shortcomings in the prior art that the road condition information acquisition effect is not ideal and the adaptive cruise system is not closely combined with the unique driving control mode of the electric vehicle, such as electric regenerative braking, the present invention provides an electric vehicle based on the Internet of Vehicles Adaptive cruise control system and method, in which the vehicle networking wireless communication device adopts the ZigBee wireless communication protocol (hereinafter referred to as the ZigBee protocol) based on the IEEE802. Speed limit, slope and other information are shared between roads and vehicles, and vehicles and vehicles. Based on this information, the adaptive cruise system of electric vehicles adjusts the constant speed and car-following mode switching during cruising to determine the best driving mode. Optimal braking energy recovery effect
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Embodiment 1
[0048] Such as Figure 4 In the regenerative braking control system for the adaptive cruise process of electric vehicles based on the Internet of Vehicles shown, Vehicle 1 and Vehicle 2 are both performing adaptive cruise driving on the road, and both are in the constant speed cruise mode under adaptive cruise at first. Cars are driving in the same lane with vehicle 2 in front and vehicle 1 behind. Such as Figure 5 In the scene shown, the upper part shows that there is a vehicle in front (vehicle 2) in the same lane at a distance L in front of the vehicle (vehicle 1), and the speed of the vehicle in front is v 2 greater than the speed v of the vehicle behind 1 , ie v 2 > v 1 .
[0049] The vehicle device 110 is placed on the vehicle 1, and the vehicle device 120 is placed on the vehicle 2. The first main control board 111 on the vehicle device 110 is connected with the camera module 113, the first XBee module 112, the GPS module 114, and the CAN bus respectively. Connec...
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The invention discloses a self-adaptive cruise control system and a self-adaptive cruise control system method for an electric automobile based on car networking. The system as shown in a figure comprises a car networking device for cars, a car networking road device and an electric automobile self-adaptive cruise controller, wherein the car networking device for cars is arranged in the electric automobile to acquire information of external roads and other vehicles by means of wireless communication; the car networking road device is arranged on the side of a road, is connected to a cloud server and is wirelessly connected to the car networking device for cars and transmits the information; and the electric automobile self-adaptive cruise controller is connected to the car networking device for cars to receive information acquired outside and control the self-adaptive cruise function of the electric automobile. According to the system and method, the transmission range and quantity ofinformation of traffic information are expanded, and wireless transmission delay is reduced. The invention also provides the self-adaptive cruise control method for the electric automobile based on car networking. A dynamic planing strategy is formulated to update the brake strategy of the automobile in real time according to the velocity of the front automobile by following the velocity of the front automobile by means of regenerative braking deceleration, so that the regenerative braking effect of the electric automobile is optimum.
Description
technical field [0001] The invention belongs to the technical field of intelligent transportation vehicle networking facilities and electric vehicle braking energy recovery, and in particular relates to an electric vehicle adaptive cruise control system and method based on vehicle networking. Background technique [0002] The main purpose of the existing electric vehicle regenerative braking technology is to use the motor as a generator to generate driving resistance torque during the braking process of the electric vehicle, and the generated electric energy is stored in the power battery of the electric vehicle. The existing automobile adaptive cruise system has two modes of constant speed cruise and car following, and controls the longitudinal driving dynamics of the car under specific working conditions, which is a driver-assisted driving technology. The existing Internet of Vehicles technology can realize real-time sharing of vehicle information in road traffic, and can ...
Claims
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IPC IPC(8): B60W30/16B60W10/18H04W4/40H04W4/46H04W4/06H04L29/08
CPCH04L67/12H04W4/06H04W4/40H04W4/46B60W10/18B60W30/16B60W2710/18B60W2520/10B60W2510/244B60W2540/12B60W2540/10B60W2556/45B60W2554/801
Inventor 初亮王嘉伟许炎武王引航姜雲崧于鑫洋
Owner JILIN UNIV
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