CONTROL DEVICE FOR VEHICLE DRIVE DEVICE

• Main Author: NISHIU, Masahiro
• Format: Patent
• Language: English; French; German
• Published: 15.12.2021
• 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; BRAKES; CLUTCHES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; COUPLINGS FOR TRANSMITTING ROTATION; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

Even when a failure has occurred in which a flow channel control valve that can switch a destination of oil discharged from a pump to an oil passage for lubrication and cooling or an oil passage for engagement control is fixed to a side where the oil passage for lubrication and cooling is connected to the pump, oil is appropriately supplied to the oil passage for engagement control. A vehicle drive device includes an engagement pressure flow channel (21), a lubrication flow channel (22), a first pump (1) having a discharge port connected to the engagement pressure flow channel (21), a second pump (2), and a flow channel control valve (5). The flow channel control valve (5) selectively switches flow channels between a first state in which an outflow destination of oil discharged from the second pump (2) is the engagement pressure flow channel (21) and a second state in which the outflow destination is the lubrication flow channel (22). When a failure in which the flow channel control valve (5) is fixed in the second state has occurred (#1), a control device (10) for a vehicle control device performs fail-safe control (#3) in which a rotational speed of at least one of an internal combustion engine (70) and a rotating electrical machine (80) is increased to supply oil to the engagement pressure flow channel (21) by the first pump (1).