Nissan Motor Company Limited

Nissan Motor Corp.

Ryuichi Idoguchi

Hiroyuki Hirano

Toshio Kikuchi

Eiji Inada

Takeshi Aso

Shinichiro Kitada

Yutaro Kaneko

Shinichirou Kitada

Yuutarou Kaneko

Takeshi Asou

Yasuhiko Yamagishi

Tamotsu Kawamura

Yutarou Kaneko

A cooling system for an electric motor of a vehicle comprises an electric motor which drives the vehicle, a reduction gear which adjusts a driving force of an output shaft of the electric motor and transmits the driving force to a drive shaft, and an in-shaft refrigerant passage provided in a shaft of the reduction gear and the output shaft of the electric motor. In the cooling system, a refrigerant which has passed through the in-shaft refrigerant passage is collected outside a motor case housing the electric motor, and is circulated.

Cooling system for electric motor of vehicle

A mounting structure, for a plurality of high pressure gas vessels ( ), has a block-shaped vessel mounting member ( ) with a high rigidity formed with accommodating portions ( ) for accommodating first neck portions ( ) formed at one sides of the plural high pressure gas vessels and vessel base-valves ( ) and formed with a gas flow passage ( ) that opens at openings ( ) of right and left side walls of the vessel mounting member ( ) to allow the accommodating portions to communicate with one another. The neck portions ( ) and the vessel base-valves ( ) at the one sides of the plural high pressure gas vessels are accommodated in the accommodating portions ( ) of the vessel mounting member , and the plural high pressure gas vessels are mounted in the vessel mounting member ( ), enabling the gas flow passage , formed in the vessel mounting member ( ), to serve as a high pressure conduit portion.

Mounting structure for high pressure gas vessels and mounting method

An engine is activated to drive a generator when an electrical output is required. The required electrical output (PO) is searched and the necessary engine output is calculated. The basic driving point (NO, TO) which obtains maximum fuel efficiency is set at that output (S S ). The load of the generator is controlled so as to reach the set basic driving point. When the catalyst temperature is lower than a set value, while maintaining the required electrical output, the basic driving point is varied to a driving point (Ncold, Tcold) which will raise the exhaust gas temperature (S ). Furthermore when the temperature of the peripheral engine components in the engine room is higher than a set value, while maintaining the required electrical output, the driving point is varied to a driving point (Nheat, Theat) which will lower the exhaust gas temperature (S S ). Hence while maintaining the electrical output, it is possible satisfy each component temperature condition. Therefore while maintaining drivability, fuel efficiency performance, lowering exhaust gas emissions and component deterioration can suppressed.

Generator control device for an electrical automobile

There is disclosed a controller for an electric vehicle that allows for securing a sufficient battery capacity and is able to substantially avoid giving an uncomfortable feeling to the crew even if an engine for power generation is started. The controller comprises a power generation control unit which makes a generator of the electric vehicle generate electric power by starting a generator-driving engine of the electric vehicle in the case that an SOC (state of charge) of a battery of the electric vehicle is equal to or less than a first value, and further makes the generator generate the electric power by starting the generator-driving engine in the case that the SOC of the battery is equal to or less than a second value larger than the first value and a predetermined condition is satisfied. Further, an electric vehicle provided with such a controller is also disclosed.

Controller for electric vehicle and electric vehicle using the same

By calculating a fuel vapor quantity in a fuel tank based on a fuel temperature and a fuel residual quantity in the fuel tank, then calculating a fuel vapor purge quantity based on an engine revolution number and engine torque when an engine is driven, and then estimating a fuel vapor quantity captured in a vapor capturing unit based on the fuel vapor quantity and the fuel vapor purge quantity, the engine can be driven to purge the fuel vapor to the engine before the fuel vapor overflows the vapor capturing unit to thus be discharged into the air.

Method of controlling generator driving engine and system for embodying

A hybrid electric vehicle comprises an electric motor, a battery pack for the electric motor, a generator driven by an engine to provide electric power used for charging the battery pack, and a battery management for the battery pack. The battery management determines a current value of battery temperature (BT) of the battery pack and a current value of state of charge (SOC) within the battery pack. What are stored are a first set of varying SOC values and a second set of varying SOC values against varying BT values. The first set of varying SOC values are minimum SOC values required for the battery pack to produce a constant electric power output at varying BT values. The second set of varying SOC values are each indicative of an allowable upper limit to the quantity of electric charge that will accumulate in the battery pack due to operation of charging the battery pack with a constant electric power input at a corresponding BT value. The battery management provide an actuator command for control of electric power input upon charging the battery pack in response to the current value of BT, the current value of SOC, the first set of varying SOC values and the second set of varying SOC values.

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Yokohama, Japan

Ryuichi Idoguchi