Vehicle transmission gear shifting control method for enhancing heating
A control method and transmission technology, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as inability to adapt to driving needs, and achieve the effect of improving drivability and increasing shifting speed.
Active Publication Date: 2017-05-17
SAIC MOTOR
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Problems solved by technology
For ordinary automatic transmission vehicles, the shift speed is the initial setting value. When the vehicle reaches a certain speed, the gear will be automatically up / down. This speed will not be related to the current state of the vehicle and cannot adapt to each Driving needs in different environments
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Embodiment 1
[0017] The method of the present invention is aimed at automatic transmission models, and the shift speed is the speed at which the gear is automatically switched to the next gear when the vehicle speed changes to a certain speed; for example, if the shift speed V 1 When it is set to 40km / h, when the vehicle accelerates to 40km / h, the gear shifts to 2nd gear;
[0018] A method for controlling gear shifting of a vehicle transmission with enhanced warm air, setting the initial gear shifting speed V X =f(±x),V X is the shift speed of the xth gear; where f(x) is the shift speed of the xth gear when the vehicle accelerates, f(-x) is the shift speed of the xth gear when the vehicle decelerates, and is calculated according to the heating state of the vehicle Choose as follows:
[0019] 1) When the vehicle heater is on, make the vehicle's current shift speed V X ′= f(±x)×k x , k x is the acceleration coefficient of the xth gear, 1x ≤1.3;
[0020] 2) When the vehicle heater is of...
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The invention relates to the field of vehicle travelling control, in particular to a transmission gear shifting control method. The vehicle transmission gear shifting control method for enhancing heating comprises the steps that the initial gear shifting speed V<x> is set to be equal to f(+ / -x), wherein V<x> is the gear shifting speed of the x gear; the following choices are made according to the heating state of a vehicle, (1) when a vehicle heater is turned on, the current gear shifting speed V<x'> of the vehicle is made to be equal to f(+ / -x)*K<x>, wherein K<x> is the acceleration coefficient of the x gear and is larger than 1 and no larger than 1.3; and (2) when the vehicle heater is turned off, the current gear shifting speed V<x'> of the vehicle is made to be equal to V<x>; and the vehicle gear is controlled through the current gear shifting speed V<x'> of the vehicle during travelling of the vehicle. By adoption of the vehicle transmission gear shifting control method for enhancing heating, balance between the dynamic property, the comfort, the economy and the driveability is comprehensively considered according to user personalization and driving state requirements, and in the heating state, the heating performance of the vehicle is improved by increasing the gear shifting speed and decreasing the ignition advance angle, accordingly a user is more comfortable, and the driveability of the vehicle is improved.
Description
technical field [0001] The invention relates to the field of vehicle running control, in particular to a transmission shift control method. Background technique [0002] The automobile industry is one of the pillar industries in my country. With the continuous improvement of people's living standards, the requirements for overall economy, comfort and driving performance of automobiles are getting higher and higher. As the core of the car, the power system has attracted more and more attention to the driving experience, and has gradually become the sales highlight of the main models of major OEMs. [0003] With the sluggish sales growth in the domestic auto market and intensified competition in the auto industry, various OEMs are scrambling to add configurations and upgrade functions to their flagship models, and provide customers with different driving experiences in hopes of gaining more market share. For ordinary automatic transmission vehicles, the shift speed is the ini...
Claims
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IPC IPC(8): F16H61/02
CPCF16H61/02
Inventor张静旭吴铭淞邹超黄亮姜晓龙
OwnerSAIC MOTOR