The purpose of the present invention is to further improve fuel economy while ensuring amplification of braking force upon brake operation in a vehicle capable of coasting in a state in which there is less engine-braking force than when traveling with engine braking. Free-run coasting, which produces excellent fuel efficiency by traveling with the engine (12) stopped, is maintained until a brake-pedal force (Brk) reaches a first threshold (±), and coasting in neutral, which produces appropriate amplification of the brake-pedal force (Brk) via a brake booster (42) by traveling with the engine (12) still running, is maintained until a second threshold (²) that is higher than the first threshold (±) is reached. This makes it possible, relative to the use of only free-run coasting or only coasting in neutral, to further improve overall fuel economy while ensuring that brake operation produces a sufficient vehicle-braking force.
VEHICLE TRAVEL CONTROLLER
FAHRZEUGWEGREGLER
ORGANE DE COMMANDE DE DÉPLACEMENT DE VÉHICULE
2022-05-11
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING |