Accelerator torque control method and system, and vehicle
A torque control and vehicle technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve problems such as unreasonable output torque, driving risk, poor experience, etc., to achieve the effect of improving stability
Active Publication Date: 2021-08-27
BEIJING ELECTRIC VEHICLE
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[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.
[0031] At present, most vehicles are equipped with creep mode (low-speed cruise driving assistance system), that is, when the vehicle is in the driving gear without stepping on the accelerator or brake, the vehicle can output a certain driving torque to control the vehicle to start and slowly accelerate to creep. The creep mode of some vehicles can also output a larger driving torque under ...
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The invention provides an accelerator torque control method and system, and a vehicle. The accelerator torque control method comprises the steps of: if an accelerator pedal is stepped on when the vehicle is in a crawling mode, obtaining an accelerator demand torque T1 of the vehicle, and an instantaneous crawling torque T0 and an instantaneous crawling vehicle speed V0 at the moment when the accelerator pedal is stepped on; and controlling a driving torque T and a vehicle speed V of the vehicle according to the instantaneous crawling torque T0, the instantaneous crawling vehicle speed V0 and the accelerator demand torque T1. According to the accelerator torque control method provided by the embodiment of the invention, the vehicle is controlled to output the driving torque larger than the crawling torque by acquiring the crawling torque and the crawling vehicle speed at the moment of change of the accelerator pedal, so that the vehicle is ensured to correctly respond to the acceleration requirement, the phenomena of acceleration loss, slope slipping, idle stroke of the accelerator pedal and the like are avoided, and the stability, the safety and the driving experience of the vehicle are greatly improved.
Description
technical field [0001] The invention relates to the technical field of automobile driving, in particular to an accelerator torque control method, system and vehicle. Background technique [0002] At present, most vehicles have a creeping driving mode, that is, when the vehicle is in the driving gear without stepping on the accelerator or braking, the vehicle can output a certain driving torque to control the vehicle to start and slowly accelerate to the set speed of creeping. The creep mode of the vehicle can also output a larger driving torque under certain circumstances to realize the additional function of slowly climbing. However, if the driver steps on the accelerator when the vehicle is crawling and climbing, if the vehicle directly outputs the required torque of the accelerator, and the required torque of the accelerator is relatively small, the vehicle will experience acceleration loss or slippery slopes. The experience is not good, and the risk is relatively high o...
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IPC IPC(8): F02D11/10F02D29/02B60W30/18B60W10/06
CPCF02D11/105F02D29/02B60W30/18063B60W10/06F02D2250/18B60W2510/0657B60W2520/10B60W2710/0666
Inventor 郑潮雄梁海强储琦王琳琳
Owner BEIJING ELECTRIC VEHICLE