Patent
Transmission lubrication and motor cooling system
TLDR
In this paper, the annular space between the motor shaft and a driveshaft provides a passage wherein fluid is distributed to the motor and the transmission under pressure, and the fluid returns to a common sump by gravity from the motors and transmission.Abstract:
The electric motor and transmission that apply power to the drive wheels of a vehicle are supplied with hydraulic fluid to lubricate the transmission and to cool the motor by a common fluidic circuit. The annular space between the motor shaft and a driveshaft provides a passage wherein fluid is distributed to the motor and the transmission under pressure. The rotor of the motor has axial passages through which the fluid flows from a radial passage connecting the annular space with the passages. At each axial end of the rotor fluid exiting the rotor, is thrown outward onto the inner surfaces of the stator windings. The fluid returns to a common sump by gravity from the motor and transmission.read more
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Patent
Oil circulating system for electric vehicle
Masahiro Hasebe,Yoshinori Miyaishi,Satoru Wakuta,Yukihiro Minezawa,Takeshi Hara,Shigeo Tsuzuki +5 more
TL;DR: In this article, an electric vehicle includes a drive motor for generating a output drive torque, a torque transmission train for transmitting the output torque to the drive wheels of the electric vehicle and an oil circulating circuit for feeding oil to both the drive motor and the transmission train.
Patent
Power transmission system and operation method therefor
Masashi Aikawa,Nobushi Yamazaki +1 more
TL;DR: In this article, between a speed reducing mechanism (15, 17, 19) for speed reducing drive power of an electric motor and a differential apparatus (7) for distributing speed-reduced drive power to axle ends is disposed a clutch configured for interruptive transmission of drive power.
Patent
Lubrication and cooling system for a powertrain including an electric motor
TL;DR: In this article, a hydraulic pump forces fluid from a sump supplied from a lubrication circuit and a cooling circuit that takes heat from an electric motor to the sump, and the speed of the pump is controlled in accordance with a signal produced by a temperature sensor mounted on a traction motor.
Patent
Method for controlling a motor vehicle powertrain
TL;DR: In this article, a multiple forward speed automatic transmission produces its lowest forward speed ratio when a hydraulic clutch and hydraulic brake are disengaged and a one-way clutch connects a ring gear to the transmission casing.
Patent
Motor-type power device
Seiichi Mogi,Tatsuya Fukushima +1 more
TL;DR: In this article, a reduction gear and a differential gear are moved from the transmission housing chamber side to the electric motor side to prevent an increase in resistance to oil stirring by a rotor of an electric motor while retaining a constant amount of oil on the transmission side.
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Patent
Reduction drive for electric axle
TL;DR: In this paper, a drive axle assembly with a tubular support housing adapted to be mounted on a vehicle frame and rotatably supporting a driving wheel is described, with a high speed electric motor mounted on the inboard end of the support housing driving an inboard reduction gearset which is connected by an intermediate shaft rotating at an intermediate speed to drive an outboard reduction gearsset at the outboard end.
Patent
Liquid cooling arrangement for dynamoelectric machine
TL;DR: In this article, a method of and apparatus for cooling the heat-producing electrical windings of a dynamoelectric machine by spraying them directly with atomized coolant to deposit a coating of liquid coolant which flows over and away from them to carry away heat picked up from them by conduction is presented.
Patent
Cooling arrangement for an integrated drive-generator system
TL;DR: In this paper, an integrated drive-generator system in which a casing housing a constant speed drive unit is attached to a casinghousing a generator unit with means being provided to isolate mechanically debilitating debris within the unit which expelled it and so avoid damaging the other unit.
Patent
Improvements in and connected with the Running Gear and Frames of Road Vehicles and Motor Road Vehicles.
TL;DR: Maxim's undercarriage as mentioned in this paper is composed of upper and lower tubes connected at the ends by union pieces, and at intermediate points by clips a, a, to which the transverse springs B, B are attached.