CONTROL UNIT FOR HYBRID VEHICLE

• Main Authors: HANDA KAZUNARI, TAKAGAKI MASAYUKI, OMI YOSHIHIRO, ISHII DAIROKU, UEDA KATSUNORI
• Format: Patent
• Language: English
• Published: 26.06.2014
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a control unit for hybrid vehicle that can make a vehicle stand by in safe.SOLUTION: When an ignition switch is turned ON (a) and abnormality of one of pieces of electronic control equipment or one of sensors is detected, a real fail state is established and fail-safe processing is carried out (b). A fault determination is made a predetermined period after the real fail state is established, a fail level is transmitted, and hybrid fail-safe processing is carried out (c). Once the abnormality is removed, the real fail state is canceled and fail-safe processing on an engine is ended (d). When the ignition switch is turned ON again after being turned OFF thereafter (e), the transmission of the fail level to a hybrid control unit is stopped. Then the hybrid fail-safe processing is ended (f).