Method for controlling variable compression ratio of an engine having an automatically controlled transmission
October 1, 2023. 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 ReferencesMethod of feedback controlling engine idle speed Power transmission mechanism for automotive vehicles System for controlling servo activating hydraulic pressure occurring in vehicular power train Automatic transmission gearshift control having feedforward response of clutch and its hydraulic actuation Control apparatus for continuously variable transmission connected to lean-burn engine Wheel spin control using electronically controlled clutches and engine controls Method for reducing driveline disturbances by controlling torque converter clutch application Lock-up control apparatus and method for torque converter of automatic power transmission Control apparatus and control method for an engine powertrain of a vehicle Coordinated control method for turbocharged diesel engines having exhaust gas recirculation InventorsAssigneeApplicationNo. 10677944 filed on 10/01/2003US Classes:477/107, Engine controlled by transmission123/339.11, By regulating spark ignition timing477/154, Speed responsive control477/45, Fluid pressure control180/197, WITH MEANS FOR DETECTING WHEEL SLIP DURING VEHICLE ACCELERATION AND CONTROLLING IT BY REDUCING APPLICATION OF POWER TO WHEEL477/169, Speed responsive control477/168, With fluid drive477/47, Engine coast braking60/605.2, With exhaust gas recirculation60/274, Anti-pollution701/54, Engine output control477/132, Downshift control192/54.1Torque responsiveExaminersPrimary: Wright, DirkAttorney, Agent or FirmInternational ClassB60K041/04AbstractA system is described for minimizing engine torque disturbances that would otherwise cause degraded drive feel by a vehicle driver. The system utilizes multiple torque transmission paths of a transaxle unit mounted to the engine. The system manipulates the torque transmitted by adjusting the clutches of multiple torque transmission paths so that the torque disturbance in the engine results in relatively constant vehicle drive torque. In one example, a potential torque increase due to variation in engine compression ratio is reduced using multiple paths of the transmission. In this way, relatively constant output torque can be maintained.Field of SearchEngine controlled by transmission | |
