Disclosed are a control method for a hydraulic retarder, and a control system. The control method includes: acquiring a slope of a downhill road segment ahead of a vehicle; determining whether an absolute value of the slope of the downhill road segment ahead of the vehicle is greater than an absolute value of a slope for which a braking force is not required; if so, predicting a required braking force for the vehicle to travel, at a steady speed, on the slope of the downhill road segment ahead, and an oil amount required for the braking force; predicting corresponding oil filling time according to the required oil amount; predicting, according to the oil filling time, a distance between the vehicle and an origin of the downhill road segment ahead at the start time of oil filling of the hydraulic retarder; in the case that the actual distance between the vehicle and the origin of the downhill road segment ahead is equal to a predicted distance, controlling the hydraulic retarder to start oil filling; and upon the vehicle reaching the origin of the downhill road segment ahead, controlling the hydraulic retarder to start braking. By means of the control method for the hydraulic retarder and the control system, the hydraulic retarder starts oil filling before reaching a downhill position, and starts braking upon reaching the downhill position, thereby lowering the wear of brake pads, and reducing the waste of vehicle running costs.
CONTROL METHOD FOR HYDRAULIC RETARDER, AND CONTROL SYSTEM
STEUERUNGSVERFAHREN FÜR HYDRAULISCHEN RETARDER UND STEUERUNGSSYSTEM
PROCÉDÉ DE COMMANDE POUR RALENTISSEUR HYDRAULIQUE ET SYSTÈME DE COMMANDE
2023-05-31
Patent
Electronic Resource
English
Control method of hydraulic retarder system, hydraulic retarder system and vehicle
European Patent Office | 2023
|CONTROL METHOD FOR HYDRAULIC RETARDER, AND CONTROL SYSTEM
European Patent Office | 2023
|