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US 6,019,699 AGranted
Synchronized coast downshift control for hybrid vehicles
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazumi Hoshiya, Hidehiro Oba
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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKazumi Hoshiya, Hidehiro Oba
Estimating the term…
A drive control system for a hybrid vehicle for preventing a delay in the application of a one-way clutch in a transmission and an application shock. In this drive control system, an electric motor and an internal combustion engine are coupled to the input side of a transmission having at least one gear stage to be set by applying a one-way clutch. The drive control system comprises: a detector for detecting a coasting state in which the one-way clutch is released in a deceleration state set with the gear stage; and an input speed raising device for driving the electric motor when the coasting state is detected, so that the input speed of the transmission may approach the synchronous speed which is the product of the gear ratio of the gear stage to be set by applying the one-way clutch and the output speed of the transmission.
A drive control system for a hybrid vehicle, in which an electric motor and an internal combustion engine are coupled to the input side of a transmission capable of at least one gear stage for applying a one-way clutch, comprising:
Dependencies are inferred from the claim text.