Nissan Motor Company Limited

Takamitsu Hase

Yoshinori Yamamoto

Shusaku Katakura

Kenichiro Murakami

Tomohiko Takahashi

Masahiro Omori

Kohei Kamiya

Daigo Kishi

Yasushi Ohmura

Kenichi Tsubaki

Mitsuru Yoichi

During control of an air-conditioning for a vehicle, when a torque to the engine is outputted that satisfies a total value of drive torques of the vehicle and an air-conditioning compressor, a minimum discharge capacity is set when fuel to the engine is cut. An assessment is made as to whether or not the discharge capacity needs to be changed from the minimum discharge capacity in accordance with the state inside the cabin. The discharge capacity is changed from the minimum discharge capacity to an upper limit capacity that is allowed during normal operation upon accessing that the discharge capacity needs to be changed from the minimum discharge capacity. After a predetermined time elapses following the changing of the discharge capacity, the discharge capacity is changed from the upper limit capacity to a discharge capacity that corresponds to the state inside the cabin.

Vehicle air conditioning control method and vehicle air conditioning device

During a fuel cut-off control, if a vehicle deceleration rate becomes greater than a rapid deceleration determination value, which is calculated based on a rotational resistance of internal combustion engine, a vehicle is determined to be in a state of rapid deceleration. The rapid deceleration determination value is set to decrease as the rotational resistance of internal combustion engineincreases. The rotational resistance thereof increases as the vehicle speed decreases, and increases as a transmission gear ratio increases. Thereby, during decelerating on a high vehicle speed side, an erroneous determination of rapid deceleration due to a longitudinal vibration of the vehicle that occurs when the fuel cut-off control starts can be prevented, and during decelerating on a low vehicle speed side, a determination of rapid deceleration can be implemented to terminate the fuel cut-off control and thereby prevent the internal combustion enginefrom being stopped.

Control device for internal combustion engine

A driving force control device for a hybrid vehicle includes: a travel load calculation unit adapted to divide a predicted route from a current position to a predetermined distance ahead into a plurality of intervals, and to estimate a travel load in each interval; a recommended discharge amount calculation unit adapted to search for a regeneration possible interval, in which a travel condition required by a driver can be maintained even when an output of an internal combustion engine is stopped and regeneration is performed by a motor/generator, from an estimation result, and to estimate a charge amount expected value in the regeneration possible interval, and distributes the charge amount expected value preferentially to an adjacent interval to the regeneration possible interval as a recommended discharge amount in order to stop the output of the internal combustion engine; and an energy management unit that controls an operation of the motor/generator in the current position on the basis of a travel condition, a state of charge, and the recommended discharge amount in the current position.

Driving force control device for hybrid vehicle and driving force control method for hybrid vehicle

An engine fuel pump control apparatus is provided. The engine fuel pump control apparatus is connected to an engine and a transmission. A fuel pump is interposed in a fuel conduit between a fuel tank and the engine and the fuel pump has a selectively variable fuel delivery rate. A fuel pump controller is configured to adjust a fuel delivery rate from the fuel pump to the engine in which the fuel pump controller is configured to increase the fuel delivery rate as a rotational speed of the engine increases. The fuel pump controller is further configured to adjust the fuel delivery rate as a detected vehicle speed characteristic varies.

Fuel pump control device for an internal combustion engine

An engine deceleration control system for an internal combustion engine of a vehicle is arranged to prohibit correcting an air quantity supplied to the engine when an elapsed time period from a moment of turning off of an accelerator of the engine is within a first predetermined time period, or when an elapsed time period from a moment of turning off of a lockup clutch of a torque converter is within a second predetermined time period or when a shifting of a transmission connected to the engine is being executed, and to cancel prohibiting the correction of the supplied air quantity when a braking operation is executed.

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Kanagawa, Japan

Takamitsu Hase