摘要:
A power transmission has a parking pawl which is engageable with a toothed member on the transmission output shaft to prevent rotation of the output shaft when the parking pawl is set. The pawl is manipulated by a manual selector shaft and a detent plate. The detent plate is also drivingly connected with a transmission range selector valve through a pin which engages an annular groove in the selector valve. The pin is driven by a cam on the detent plate and is guided in a pair of longitudinal slots formed on the valve body which slidably houses the selector valve.
摘要:
A transmission system of a vehicle comprises a pump, an auxiliary pump, and a transmission. The pump pressurizes transmission oil when an engine is operating. The auxiliary pump operably coupled to the pump and located parallel to the pump that pressurizes the transmission oil when the engine is not operating. The transmission selects a gear ratio based on the pressurized transmission oil.
摘要:
An automotive drive system includes a transmission comprising a plurality of gears, an electric motor having a rotor and being coupled to the transmission such that operation of the electric motor causes actuation of the gears, and a sensor assembly coupled to and located on the exterior of at least one of the transmission and the electric motor, the sensor assembly being configured to detect movement of at least one of the rotor and the plurality of gears and generate a signal representative thereof.
摘要:
This invention relates to grounding the mechanical loads of an electrically variable transmission with a park pawl system located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and engagement gear. A support hub is interfittable with the end cover portion of the transmission and sufficiently secured thereto so as to ground the park pawl loads. The hub also functions to guide oil to the cavity of a piston-clutch assembly. A method of securing a hub to an electrically variable transmission housing is also provided.
摘要:
An electro-mechanical drive-unit includes an input member, an output member, a drive-unit housing, and a gearing arrangement operatively connected to each of the output and input members. The drive-unit also includes a pump for circulating pressurized fluid and an electric motor. The electric motor includes a rotor connected to the gearing arrangement, a stator fixed relative to the drive-unit housing and having wire windings, and a motor housing configured to retain the rotor and the stator. The drive-unit also includes a fluid cavity between the drive-unit housing and the motor housing configured to receive the pressurized fluid. The drive-unit housing defines a passage in fluid communication with the fluid cavity. The drive-unit also includes a fastener having a head and a shank. The fastener is secured within the passage to facilitate discharging the fluid from under the fastener head onto the wire windings for cooling and/or lubrication thereof.
摘要:
A clutch assembly for a hybrid vehicle includes a clutch assembly including a first housing comprising a first clutch, a first clutch actuator and a second housing having the first clutch actuator at least partially disposed therein so that said first clutch actuator selectively engages the first clutch.
摘要:
A transmission includes an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque-transmitting devices. A hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.
摘要:
A cooling system for an electrically variable transmission includes an electric motor having a plurality of connectors. The plurality of connectors are each assembled within a plurality of connector openings in a terminal block. Fluid from within a passageway is supplied by a pressurized fluid source, and an orifice for the passageway is located adjacent to one of the plurality of connector opening. The fluid flowing from the passageway is directed onto one of the plurality of connectors.
摘要:
A seal for use between the housing of an automatic transmission and the housing (can) of a transmission drive motor is disposed at each end of the drive motor housing. The seal includes a preferably metal annulus having inner and outer elastomeric ribbed seals secured thereto. The annulus, which defines a non-hardened “S” shape in cross section, maintains the shape and strength of the seal and the ribbed inner seal provides a fluid tight seal with the motor housing while the ribbed outer seal provides a fluid tight seal with the transmission housing.
摘要:
This invention relates to an actuable park pawl system for a hybrid electro-mechanical transmission located in the end cover portion of the transmission housing. The end cover portion is configured to cover the park pawl system and ancillary components such as the actuator guide. This enables the actuator guide to be an open-ended structure. A method of securing a park engagement system with an open-ended actuator guide in a vehicle transmission is further provided.