Power performance optimization method of vehicle and system with power performance optimization function
An optimization method and technology for power performance, applied in hybrid vehicles, motor vehicles, transportation and packaging, etc., can solve problems such as weak acceleration, poor fuel consumption, and inability to provide power assistance, so as to alleviate power weakening and reduce fuel injection. Effect
Active Publication Date: 2019-07-23
ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1
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Problems solved by technology
[0003] An object of the present invention is to provide a vehicle power performance optimization method to solve the problem of weak acceleration when the vehicle cannot provide power assistance in the prior art
[0004] Another object of the present invention is to solve the problem of poor fuel consumption when the engine works in the high load range
[0005] Another object of the present invention is to provide a system with power optimization function to solve the problem of weak acceleration when the vehicle cannot provide power assistance in the prior art
Method used
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Embodiment Construction
[0061] figure 1 is a schematic flowchart of a method for optimizing the power performance of a vehicle according to an embodiment of the present invention;
[0062] Such as figure 1 As shown, this embodiment provides a method for optimizing the power performance of a vehicle, which may specifically include the following steps:
[0063] S10 detects the vehicle state of the vehicle;
[0064] S20 According to the detected state of the vehicle, if it is determined that the vehicle is suitable for one or two states in the target output state, analyze whether the vehicle is working in a weak state according to the vehicle operating condition information of the vehicle; wherein, the The target output state includes a first output state and a second output state, the first output state is the state that the power assistance of the hybrid power system cannot meet the user's demand, and the second output state is the state that the power assist of the hybrid power system can meet the ...
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The invention provides a power performance optimization method of a vehicle and a system with a power performance optimization function and relates to the technical field of vehicle intelligent control. The method includes the following steps that according to the detected vehicle state, if it is ensured that the vehicle is suitable for one or two states in target states, whether the vehicle worksin a weak working condition or not is analyzed according to vehicle working condition information of the vehicle, if the vehicle works in the weak working condition and is suitable for one target output state, the vehicle is controlled according to the ensured vehicle-suitable first output state or the ensured vehicle-suitable second output state, and if the vehicle works in the weak working condition and is suitable for two output states, one output state in the two output states is selected according to the vehicle working condition information for control of the vehicle. By the adoption ofthe method and the system, the situation that power is weakened due to the fact that a hybrid power system cannot provide assistance can be effectively relieved, the problem of the weak vehicle poweris solved, and meanwhile the fuel spraying amount is properly reduced according to engine work section adjustment.
Description
technical field [0001] The invention relates to the technical field of vehicle intelligent control, in particular to a vehicle dynamic performance optimization method and a system with dynamic optimization function. Background technique [0002] The hybrid power system has the function of power assist to adjust the engine load, which can realize fuel saving through the function of the hybrid power system itself. However, with the tightening of national fuel consumption regulations, various OEMs have achieved better fuel-saving effects by integrating vehicle resources and using fuel-saving modes (shifting gears in advance) to match hybrid systems. Since the working principle of the hybrid system is to recover a certain amount of electric energy through auxiliary braking, etc., it is used for engine load adjustment or to reduce the probability of power generation to achieve fuel saving. In addition to the above-mentioned functions, the plug-in hybrid power also has the abilit...
Claims
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IPC IPC(8): B60W20/15B60W30/188
CPCB60W20/15B60W30/188B60W2510/0657B60W2510/0666B60W2510/083B60W2510/085B60W2510/242
Inventor 马恩山
Owner ZHEJIANG GEELY HOLDING (GROUP) CO LTD