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US 7,693,637 B2Granted
Hybrid vehicle control system
AssigneeNissan Motor Co., Ltd.
InventorsMichel Mensler, Shinichiro Joe
Life of this patent
Estimating the term…
Abstract
A vehicle control system is comprised of a controller which is arranged to select an optimal mode adapted to a driving point of a vehicle from an optimal mode map of defining a plurality of running modes of the vehicle, to detect a generation of a mode transition in the optimal mode map, and to hold a current running mode selected before the transition for a holding time period when the generation of the mode transition is detected.
Claims10
A vehicle control system comprising:
- a controller arranged
- to select an optimal mode adapted to a driving point of a vehicle from an optimal mode map defining a plurality of running modes of the vehicle,
- to detect a generation of a mode transition from a current running mode to the optimal mode in the optimal mode map, and
- to hold the current running mode, which was selected before the transition from the current running mode to the optimal mode, for a holding time period when the generation of the mode transition is detected,
- wherein the controller is further arranged to calculate a time period necessary for the mode transition from the current running mode to the optimal mode at the driving point at which the generation of the mode transition is detected, and wherein the holding time period is determined based on the mode transition time period.
2 more elements
A vehicle control system comprising:
- a transmission comprising a planetary gearset whose rotating elements are connected to an internal combustion engine, at least one motor and an output, an engine clutch through which a rotating element of the planetary gearset is connected to the engine, and an engagement element which is capable of engaging one of the rotating elements except for the rotating elements connected to the engine and the output, the transmission being capable of producing a plurality of running modes by changing engagement states of the engine clutch and the engagement element;
- and
- a controller arranged
- to select an optimal mode adapted to a driving point of a vehicle from an optimal mode map defining the running modes,
- to detect a generation of a mode transition from a current running mode to the optimal mode in the optimal mode map, and
- to hold the current running mode, which was selected before the transition from the current running mode to the optimal mode, for a holding time period from the generation of the mode transition, when the generation of the mode transition is detected,
- wherein the controller is further arranged to calculate a time period necessary for the mode transition from the current running mode to the optimal mode at the driving point at which the generation of the mode transition is detected, and wherein the holding time period is determined based on the mode transition time period.
4 more elements
A vehicle control system comprising:
- optimal mode selecting means for selecting an optimal mode adapted to a driving point of a vehicle from an optimal mode map defining a plurality of running modes of the vehicle;
- mode transition detecting means for detecting a generation of a mode transition from a current running mode to the optimal mode in the optimal mode map;
- mode transition holding means for holding the current running mode, which was selected before the transition from the current running mode to the optimal mode, for a holding time period when the generation of the mode transition is detected;
- mode transition time period calculating means for calculating a time period necessary for the mode transition from the current running mode to the optimal mode at the driving point at which the generation of the mode transition is detected;
- and
- holding time period determining means for determining the holding time period based on the mode transition time period.
3 more elements
Dependencies are inferred from the claim text.