US 12,258,084 B2
Lift axle control method and system for vehicle
Yankai Tu, Fujian (CN); Junfang Lai, Fujian (CN); and Gang Ji, Fujian (CN)
Assigned to Xiamen Yaxon Zhilian Technology Co., Ltd., Fujian (CN)
Appl. No. 18/247,181
Filed by Xiamen Yaxon Zhilian Technology Co., Ltd., Fujian (CN)
PCT Filed Jul. 29, 2021, PCT No. PCT/CN2021/109093
§ 371(c)(1), (2) Date Mar. 29, 2023,
PCT Pub. No. WO2022/057458, PCT Pub. Date Mar. 24, 2022.
Claims priority of application No. 202010966489.3 (CN), filed on Sep. 15, 2020.
Prior Publication US 2024/0010284 A1, Jan. 11, 2024
Int. Cl. B60G 17/015 (2006.01); B62D 61/12 (2006.01)
CPC B62D 61/12 (2013.01) [B60G 17/015 (2013.01); B60G 2400/60 (2013.01); B60G 2400/82 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A lift axle control method for a vehicle, wherein the lift axle control method comprises the following steps:
step 1) acquiring a load M of the vehicle during running of the vehicle;
step 2) judging whether the vehicle needs to lower a lift axle according to the load M, and when the vehicle needs to lower the lift axle according to the load M, controlling the vehicle to lower the lift axle, and then entering into step 3); otherwise, returning to step 1);
step 3) acquiring information of an electronic horizon system in real time, calculating an optimal position for lifting the lift axle in a road ahead of a current position of the vehicle, controlling the vehicle to lift the lift axle when the vehicle reaches the optimal position for lifting the lift axle, and entering into step 4); and
step 4) calculating, by the electronic horizon system, an optimal position to lower the lift axle in the road ahead, controlling the vehicle to lower the lift axle when the vehicle reaches the optimal position to lower the lift axle, and then returning to step 3).