Hybrid vehicle drive system adapted to prevent concurrent mode change and transmission shifting or torque distribution ratio change
April 15, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRatio change control for transmission Operating method for a hybrid car Hybrid powertrain vehicle Hybrid power transmission Energy distribution method for hydrid electric vehicle Parallel hybrid powertrain for an automotive vehicle Hybrid vehicle and its control method Vehicle control apparatus adapted to select engine-or motor-drive mode based on physical quantity reflecting energy conversion efficiencies in motor-drive mode Patent #: 5789882 InventorsAssigneeApplicationNo. 838130 filed on 04/15/1997US Classes:290/17, Engine control290/34, Engine control290/36R, Electric-starting motor with generator290/37A, Stop cranking responsive to generator output290/37R, Ignition290/40A, Control in response to engine speed290/40B, Control in response to generator line conditions290/40E, Circuit resonant at given frequency290/40FControl in response to D. C. generator outputExaminersPrimary: Enad, ElvinAttorney, Agent or FirmForeign Patent References
International ClassesB60L 011/12B61C 009/38 Foreign Application Priority Data1996-04-19 JPAbstractA hybrid drive system including an engine and an electric motor at least one of which is operated as drive power source to drive a motor vehicle in a selected one of different operation modes. The system is adapted to prevent concurrent operations to change the operation mode and the speed ratio of a power transmitting device or the ratio of torque distribution to front and rear drive wheels, or concurrent operations to change the operation mode and switch the power transmitting device from a non-drive state to a drive state, for avoiding a shock due to a torque variation which would arise from the concurrent operations. The system is alternatively adapted to cut a power transfer from the drive power source to the power transmitting device, or hold the output of the drive power source substantially constant, when the power transmitting device is switched from the non-drive state to the drive state.Field of SearchControl in response to generator and prime mover conditionsEngine control TRACTION BATTERY With means on vehicle for generating power for the electric motor Generating means is driven by a prime mover Electric Combined with nonelectric drive means Alternating-current-motor system Speed of motor or driven device | |
