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An automatic cruise control method and automatic cruise system for vehicles
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An automatic cruise control and vehicle technology, applied in the field of vehicle engineering, can solve problems such as energy waste and difficulty in taking into account vehicle fuel consumption, and achieve the effects of low fuel consumption, taking into account driving safety and fuel economy, and improving fuel economy.
Active Publication Date: 2022-06-21
FAW JIEFANG AUTOMOTIVE CO
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[0003] The cruise function is a common function in cars. When the cruise function is turned on, the driver's feet can be freed. When driving for a long distance for a long time, it can improve the driving comfort to a certain extent. However, the conventional cruise function can only be adjusted according to the driver's settings. It is difficult to take into account the fuel consumption of the vehicle when the cruise function is turned on, resulting in a certain degree of energy waste.
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Embodiment 1
[0037] figure 1 This is the flow chart of the automatic cruise control method in the embodiment. This embodiment can be applied to the situation of vehicle cruising. The method can be implemented in software, and the method can be configured in electronic equipment. Typical electronic equipment includes a vehicle controller. (Vehicle Control Unit, VCU), such as figure 1 As shown, the automatic cruise control method includes:
[0038] S101. Segment the current driving road. When the vehicle is driving, obtain road information of the current segment, and determine initial driving state data when the vehicle travels to the next segment according to the road information of the current segment.
[0039] Exemplarily, in this step, the driving road may be segmented according to time or distance, for example, the driving road may be divided into several sections according to a fixed time interval, or the driving road may be divided into several sections according to a fixed length. ...
Embodiment 2
[0138] image 3 is the block diagram of the automatic cruise system in the embodiment, refer to image 3 , the automatic cruise system includes: a vehicle controller 100, a TBOX 200, and a sensor 300. The TBOX 200 is used to send road information to the vehicle controller, and the sensor 300 is used to collect obstacle information.
[0139] Exemplarily, the vehicle controller 100 is configured to segment the current driving road, obtain the road information of the current segment when the vehicle is driving, and determine when the vehicle is traveling to the next segment according to the road information of the current segment. the initial driving state data.
[0140] Taking fuel consumption and driving time as control indicators, the target engine torque and target gear when the vehicle is in the next section are calculated according to the vehicle's driving state equation, initial driving state data, and road information in the next section.
[0141] It also includes judgi...
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Abstract
The invention discloses an automatic cruise control method and an automatic cruise system for vehicles. The automatic cruise control method includes: segmenting the current driving road, obtaining road information of the current section when the vehicle is running, and determining the initial driving state data when the vehicle travels to the next section according to the road information of the current section; Fuel consumption and travel time are used as control indicators. Calculate the target engine torque and target gear when the vehicle is in the next section according to the vehicle's driving state equation, initial driving state data, and road information in the next section; it also includes judging the current Whether there is an obstacle in the section, if there is an obstacle, obtain the obstacle information, calculate the safe speed according to the obstacle information and the current driving state data of the vehicle, adjust the initial driving state data according to the safe speed; and adjust the safe speed as a constraint condition Engine torque and gear when the vehicle is driving in the current sector.
Description
technical field [0001] Embodiments of the present invention relate to vehicle engineering technology, and in particular, to an automatic cruise control method and automatic cruise system for vehicles. Background technique [0002] In recent years, with the emergence of various new car-making forces, the automobile market has shown unprecedented vigor. Due to both exogenous mandatory regulations and endogenous product active innovation, further development of automobile energy-saving and emission-reduction technologies is required. Therefore, intelligence and energy saving have become the main goals pursued by car companies. [0003] The cruise function is a common function in automobiles. When the cruise function is turned on, the driver's feet can be released, and the driving comfort can be improved to a certain extent when driving for a long time. However, the conventional cruise function can only be set according to the driver's settings. The fixed speed controls the dri...
Claims
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Application Information
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