An automatic leveling device and automatic leveling method for being able to reduce an error caused by a hysteresis characteristic of an actuator are provided. A control ECU (3) obtains vehicle height values from a front height sensor (1) and a rear height sensor (2), computes a vehicle height difference from the vehicle height values, and a stroke amount to be corrected of an actuator 4 from the vehicle height difference. The control ECU (3) supplies an instruction position signal based on the stroke amount and a hysteresis width such that the instruction position signal projects tentatively alternately out of a hysteresis range plural times in a reverse direction of an immediately preceding value. Therefore, every time the instruction position signal projects tentatively alternately out of the hysteresis range, a motor (4-2) is started up again and stopped when the instruction position signal is finally matched with an actuator position signal.
Automatic leveling device and automatic leveling method
Automatische Hubvorrichtung und automatisches Hubverfahren
Dispositif de mise à niveau automatique et procédé de mise à niveau automatique
2018-07-11
Patent
Elektronische Ressource
Englisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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