US 12,485,873 B2
Control method and vehicle controller for hybrid vehicle
Dongsheng Yang, Shenzhen (CN); Chunsheng Wang, Shenzhen (CN); Yunhui Bai, Shenzhen (CN); Mingwen Chen, Shenzhen (CN); Guoxiang Lu, Shenzhen (CN); Xuechao Wang, Shenzhen (CN); and Jiquan Wang, Shenzhen (CN)
Assigned to BYD Company Limited, Shenzhen (CN)
Filed by BYD COMPANY LIMITED, Guangdong (CN)
Filed on Jun. 30, 2023, as Appl. No. 18/216,695.
Application 18/216,695 is a continuation of application No. PCT/CN2021/083380, filed on Mar. 26, 2021.
Claims priority of application No. 202110228793.2 (CN), filed on Mar. 2, 2021.
Prior Publication US 2023/0339451 A1, Oct. 26, 2023
Int. Cl. B60W 20/13 (2016.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 20/12 (2016.01); B60W 20/15 (2016.01); B60W 20/20 (2016.01)
CPC B60W 20/13 (2016.01) [B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/12 (2016.01); B60W 20/15 (2016.01); B60W 20/20 (2013.01); B60W 2510/244 (2013.01); B60W 2520/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for controlling a hybrid vehicle, the hybrid vehicle comprising an engine, a driving motor, an electric generator, and a power battery, the engine being configured to output power to a wheel end, the driving motor being configured to output power to the wheel end, the electric generator being connected to the engine and driven by the engine to generate electricity, the power battery being configured to supply electricity to the driving motor and be charged with an alternating current outputted by the electric generator or the driving motor, and a capacity of the power battery being greater than or equal to a first capacity, and
the method comprising:
acquiring a traveling parameter of the hybrid vehicle, wherein the traveling parameter comprises a wheel torque, a state of charge (SOC) of the power battery, and a vehicle speed of the hybrid vehicle;
controlling the engine, the driving motor, and the electric generator according to the wheel torque, the SOC of the power battery, and the vehicle speed of the hybrid vehicle, to enable the engine to operate in an economic zone by controlling charging and discharging of the power battery;
comparing equivalent fuel consumptions of a series mode, a parallel mode, and an EV mode of the hybrid vehicle, and determining a minimum equivalent fuel consumption among the equivalent fuel consumptions; and
selecting one of the series mode, the parallel mode, or the EV mode having the minimum equivalent fuel consumption as a current operation mode of the hybrid vehicle.