US 11,982,347 B2
Vehicle energy saving control method, storage medium, vehicle control system, and vehicle
Yankai Tu, Fujian (CN); Chaoyang Huang, Fujian (CN); Xuhui Ye, Fujian (CN); and Tengyuan Luo, Fujian (CN)
Assigned to Xiamen Yaxon Network Co., Ltd., Fujian (CN)
Appl. No. 18/254,417
Filed by Xiamen Yaxon Network Co., Ltd., Fujian (CN)
PCT Filed Aug. 6, 2021, PCT No. PCT/CN2021/111086
§ 371(c)(1), (2) Date May 25, 2023,
PCT Pub. No. WO2022/134603, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011514486.2 (CN), filed on Dec. 21, 2020.
Prior Publication US 2024/0102553 A1, Mar. 28, 2024
Int. Cl. F16H 61/02 (2006.01); F16H 59/44 (2006.01); F16H 59/52 (2006.01); F16H 59/66 (2006.01); F16H 59/70 (2006.01)
CPC F16H 61/0213 (2013.01) [F16H 59/44 (2013.01); F16H 59/52 (2013.01); F16H 59/66 (2013.01); F16H 59/70 (2013.01); F16H 2059/666 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vehicle energy saving control method, comprising:
obtaining a load threshold corresponding to each gear position of a multi-power switch;
obtaining an actual load value by a load sensor when a vehicle starts;
determining a corresponding gear position according to the actual load value and the load threshold, and switching the multi-power switch to the corresponding gear position;
obtaining road information ahead of the vehicle when the vehicle is driving, wherein the road information comprises a curvature radius of a corner ahead of the vehicle;
calculating equivalent mass according to the curvature radius, total mass of the vehicle, a speed of the vehicle and a preset road friction coefficient;
determining a predicted gear position according to a sum of the actual load value and the equivalent mass; and
switching the multi-power switch to the predicted gear position when-if the predicted gear position is different from a current gear position;
wherein the step of calculating equivalent mass according to the curvature radius, total mass of the vehicle, a speed of the vehicle and a preset road friction coefficient comprises:
calculating the equivalent mass according to a first formula, wherein the first formula is Δm=(mv2)/(gμr), Δm is the equivalent mass, m is the total mass of the vehicle, v is the speed of the vehicle, g is a gravity angular velocity, p is the preset road friction coefficient, and r is the curvature radius of the corner ahead of the vehicle.