US 12,214,771 B2
Engine control method, system, and vehicle
Yunfei Li, Baoding (CN); and Qilin Chen, Baoding (CN)
Assigned to Great Wall Motor Company Limited, Hebei (CN)
Appl. No. 17/765,412
Filed by Great Wall Motor Company Limited, Baoding (CN)
PCT Filed Nov. 23, 2020, PCT No. PCT/CN2020/130890
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2021/115110, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 201911276800.5 (CN), filed on Dec. 12, 2019.
Prior Publication US 2022/0355784 A1, Nov. 10, 2022
Int. Cl. B60W 20/11 (2016.01); B60W 10/06 (2006.01); B60W 10/26 (2006.01); B60W 20/13 (2016.01)
CPC B60W 20/11 (2016.01) [B60W 10/06 (2013.01); B60W 10/26 (2013.01); B60W 20/13 (2016.01); B60W 2510/086 (2013.01); B60W 2510/244 (2013.01); B60W 2540/10 (2013.01); B60W 2710/0677 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An engine control method applied to a vehicle including a battery and an engine, wherein, the method comprises:
by using a first acquisition processor, obtaining a current maximum discharge power value of the battery, and a current maximum external characteristic power value of the vehicle;
by using a second acquisition processor, obtaining a current opening value and a current opening change rate of an accelerator pedal of the vehicle;
by using a determination processor, determining a driving intention based on the current opening value and the current opening change rate; and
by using a control processor, controlling start and stop of the engine according to the driving intention, the current maximum discharge power value, and the current maximum external characteristic power value of the vehicle;
wherein, the vehicle is preset with an opening change rate condition; and
wherein, by using the determination processor, the determining the driving intention according to the current opening value and the current opening change rate comprises:
by using a first control processor, controlling the opening change rate condition to be in an active state when the current opening change rate is greater than a first preset change rate;
by using a second control processor, controlling the opening change rate condition to be in a deactivated state when the opening change rate of the accelerator pedal is less than a second preset change rate; wherein the first preset change rate is greater than the second preset change rate;
by using a third control processor, controlling the opening change rate condition to remain to be in the current state when the current opening change rate is less than or equal to the first preset change rate and the opening change rate of the accelerator pedal is greater than or equal to the second preset change rate;
by using a first determination processor, determining that the driving intention is urgent if the current opening value is greater than or equal to a preset opening value and the opening change rate condition is in the active state; and
by using a second determination processor, determining that the driving intention is non-urgent if the current opening value is less than the preset opening value and/or the opening change rate condition is in the deactivated state.