Energy consumption oriented blade electric vehicle two-gear speed control system control strategy
A pure electric vehicle, control strategy technology, applied in transmission control, combustion engine, components with teeth, etc., can solve the problem of low cruising range and achieve the effect of improving power performance
Active Publication Date: 2017-09-05
CHONGQING UNIV
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Problems solved by technology
However, it is well known that the cruising range of electric vehicles is low, which has become a bottleneck restricting the development of electric vehicles
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[0115] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.
[0116] In this example, a certain type of pure electric vehicle from a certain Chongqing Automobile Co., Ltd. is taken as the research object. The basic parameters of the electric vehicle are shown in Table 2.
[0117] Table 1 Main design performance indicators
[0118]
[0119] Table 2 vehicle parameters
[0120]
[0121] Under the dynamic drive mode, the pure electric vehicle mentioned in the present invention needs to reach the purpose of 30% of t...
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The invention discloses an energy consumption oriented blade electric vehicle two-gear speed control system control strategy. According to the aim, the torque output characteristic and the gear-shifting rule of a motor under different travelling modes are analyzed for a two-gear speed control system oriented to energy consumption, the gear-shifting rule of the structure of the two-gear speed control system is formulated, and the endurance mileage of an blade electric vehicle is improved. Firstly, three common working modes of the blade electric vehicle are analyzed, and an energy consumption oriented basic torque and compensation torque control method is formulated for an economical driving mode based on the driver intention and accelerator pedal information; and the best dynamic property gear-shifting rule and the best economical gear-shifting rule are formulated, a gear-shifting rule optimization model comprehensively considering economical efficiency and dynamic property is built, the cross particle swarm optimization is used for solving the model, and the comprehensive performance gear-shifting rule is obtained.
Description
technical field [0001] The invention relates to the technical field of new energy vehicle power systems, in particular to a control strategy for a two-speed transmission system of a pure electric vehicle oriented to energy consumption. Background technique [0002] The total number of cars in the world is increasing, resulting in a large amount of energy consumption and increasingly severe environmental problems. Therefore, pure electric vehicles have attracted people's attention because of their zero-emission characteristics. However, it is well known that the cruising range of electric vehicles is low, which has become a bottleneck restricting the development of electric vehicles. How to reduce the energy consumption of the whole vehicle and improve the cruising range of electric vehicles is an urgent problem to be solved. [0003] Some scholars analyze the energy efficiency of electric vehicles from the perspective of transmission system selection. Bottiglione et al. an...
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Login to View More IPC IPC(8): F16H61/02F16H59/14F16H59/60
CPCF16H59/141F16H59/60F16H61/02F16H2059/663F16H2061/0227Y02T10/40
Inventor 李聪波胡捷李月单亚帅陈文倩胡芮朱道光陈睿杰
Owner CHONGQING UNIV