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A truck prediction energy-saving system and control method based on road terrain information

An energy-saving control and terrain technology, applied in radio wave measurement systems, satellite radio beacon positioning systems, road network navigators, etc., can solve the problems of optimizing to a suitable interval, reducing fuel consumption, acceleration and deceleration, etc.

Active Publication Date: 2020-11-27
JILIN UNIV
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Problems solved by technology

Although the patent "Method and System for Controlling Vehicle Cruise Control CN 102781708 B" also utilizes road slope information for cruise control, it simply optimizes gear shifting when going up and down slopes, and does not reasonably optimize the speed to a suitable range. In this way, there will still be frequent acceleration and deceleration problems, which is not conducive to reducing fuel consumption

Method used

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  • A truck prediction energy-saving system and control method based on road terrain information
  • A truck prediction energy-saving system and control method based on road terrain information
  • A truck prediction energy-saving system and control method based on road terrain information

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Embodiment Construction

[0101] refer to figure 1 , figure 2 , a truck prediction energy-saving system based on road terrain information, the system includes a GPS satellite 12 installed on a truck 1, a GPS signal receiver 4, a positioning module 5, a path planning module 2, a map data storage module 3, a sensor 6, Slope information storage unit 8, predictive energy-saving controller 9, accelerator pedal 10, brake 11 and clutch shift mechanism 7;

[0102] Described map data storage module 3 is used for storing map data, and what adopted is vehicle-mounted memory card;

[0103] Described slope information storage unit 8 is used for storing slope information, and what adopted is vehicle-mounted memory card;

[0104] The predicted energy-saving controller 9 is used to calculate the control signal, and what adopts is the automobile electronic control unit ECU;

[0105] The path planning module 2 is used to plan the path to the destination, and adopts a main board with a central processing unit CPU;

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Abstract

The invention belongs to the technical field of automobile intelligent aided driving and energy control, and relates to a heavy truck prediction energy-saving system based on road terrain informationand a control method thereof. By using the road terrain, the slope and reference speed and like information, a certain speed margin is provided for a controller, so that the fuel consumption of the heavy truck is reduced and the total distance time cannot be increased. The invention is the heavy truck prediction energy-saving system based on road terrain information and the control method thereof.The method comprises the following steps: allowing the truck speed to change in a certain speed margin by using the road terrain information which is mainly road slope information, establishing a target function containing fuel consumption, speed tracking, speed change and brake, solving an optimal control strategy of gear-shifting, and accelerating or braking through a dynamic planning algorithm, thereby reaching the lowest cost, wherein the total distance time cannot be obviously changed at the same time.

Description

technical field [0001] The invention belongs to the technical field of automobile intelligent assisted driving and energy control, and specifically relates to a truck prediction energy-saving system based on road terrain information and a control method thereof. Background technique [0002] Unlike cars, trucks spend a lot of time cruising at a constant speed. Existing predictive cruise systems for trucks often keep the truck at a uniquely determined speed, ignoring external road environment factors. Due to the ups and downs of the road, if the truck is kept at a constant speed, it will often over-accelerate uphill and require braking when going downhill, which is undoubtedly not conducive to the energy saving of the car. Combined with the vehicle positioning information, if we can obtain the slope information of the future road, we can predict the load of the future vehicle and optimize the acceleration and deceleration behavior of the car on the slope, so as to achieve th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W10/06B60W10/10B60W10/18G01S19/42G01C21/34
Inventor 褚洪庆高炳钊刘欢陈虹张洪坤
Owner JILIN UNIV
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