摘要:
A drive belt tensioner for mounting to a motor-generator unit comprises a tensioner pulley support having a centrally located pivot defining a pivot axis and first and second reaction arms extending outwardly from the centrally located pivot to define an angle therebetween. Tensioner pulleys are rotatably mounted to the second ends of each of the first and second reaction arms. The reaction arms are configured to flexibly bias the tensioner pulleys when engaged by a drive belt force to maintain a desired drive belt tension.
摘要:
A method for controlling a vehicle having a hybrid powertrain includes monitoring vehicle navigation and traffic patterns associated with a predicted travel path. It extends the powertrain instantaneous controller into a predictive control framework, and utilizes previewed traffic and geographic information based on on-board sensing and navigation information. An impending road load is predicted from which a fuel cost factor is optimized under a model predictive control framework. A state-of-charge trajectory is predicted from the impending road load and operation of the hybrid powertrain system is controlled in response thereto.
摘要:
A drive belt tensioner assembly for a motor-generator unit is comprises a motor-generator unit having a rotatable drive pulley, configured to engage a drive belt, extending therefrom. A drive belt assembly housing is fixed to the motor-generator unit and has an inner surface defining an opening through which the rotatable drive pulley of the motor-generator unit extends. A tensioner mounting ring is mounted to, and rotatable with respect to, the drive belt assembly housing. A tensioner pulley is mounted for rotation on the tensioner mounting ring and is configured to engage the drive belt on a side of the motor-generator unit drive pulley. A biasing assembly having a first end mounted to the tensioner mounting ring and a second end mounted in a fixed relationship to the motor-generator unit exerts a biasing force on the tensioner mounting ring to rotate the ring and the tensioner pulley against the drive belt.
摘要:
An integrated electrical connector comprises one or more terminals housed within a connector body. The connector body is configured and arranged to structurally join an auxiliary component to a host vehicle to which the integrated electrical connector is mechanically fixed and electrically coupled. The connector body is configured to facilitate electrically coupling electrical circuitry of the auxiliary component to the host vehicle. The connector body is configured to facilitate transmission of information among the auxiliary component and the host vehicle.
摘要:
A multi-mode hybrid transmission including a selectable one-way clutch and first and second torque machines transitions to operating in a target continuously variable mode including applying a selectable one-way clutch and controlling input torque and motor torques of the first and second torque machines using a second kinematic relationship. A multi-step process is executed to transition the first clutch to a deactivated state, transition the second selectable one-way clutch to the applied state, and transition to using the second kinematic relationship to achieve a preferred output torque.
摘要:
Various embodiments of electrically-variable transmissions are provided that have a first and a second motor-generator, a first and a second planetary gear set, and two torque-transmitting mechanisms, including a rotating-type clutch and a stationary-type clutch. An input member is connected for common rotation with a ring gear of the first planetary gear set. Carriers of both of the planetary gear sets are connected for common rotation with one another, and with an output member. The first motor/generator is connected for common rotation with the sun gear of the first planetary gear set. The second motor/generator is connected for common rotation with the sun gear of the second planetary gear set. The rotating-type torque-transmitting mechanism is a dog clutch with a synchronizer. The stationary-type torque-transmitting mechanism may be either a dog clutch with a synchronizer or a selectable one-way braking clutch (SOWBC).
摘要:
An active engine mount assembly for counteracting resultant forces in active fuel management systems, wherein resultant forces are transmitted to a frame of a motorized vehicle generated by the deactivation of at least one cylinder in an internal combustion engine. The active engine mount assembly is fluidly connected to a hydraulic circuit. The hydraulic circuit is operatively connected to an engine crankshaft and operable to actively generate pressure pulses having frequencies self-synchronized with the rotational speed of the crankshaft.
摘要:
An engine control system for controlling a displacement on demand engine having a plurality of cylinders includes a torque converter with a torque converter clutch. A control module determines a slip speed of said torque converter clutch, estimates a temperature state of said torque converter clutch based on said slip speed, and selectively activates at least one of said cylinders based on said temperature state.
摘要:
A powertrain is provided, comprising: an internal combustion engine and an electro-mechanical transmission. The internal combustion engine has two torque output nodes operatively connected to two torque input nodes of the electro-mechanical transmission. The transmission comprises first and second electrical machines operatively connected to first and second planetary gear sets that are selectively operative to transmit torque to an output shaft. The two torque output nodes of the engine comprise an engine block comprising a cylinder with a pair of opposed pistons inserted therein, and each piston operatively connected to one of a first and a second crankshaft. The first and second crankshafts are operatively connected.
摘要:
A vehicle powertrain for a hybrid vehicle includes an electronically variable transmission (EVT) with an input member to receive mechanical rotary power from the engine, an output member to provide mechanical rotary power to a vehicle powertrain to propel the vehicle, and an EVT gear train configured to selectively and operatively couple the input member to the output member. The EVT further includes first and second motor/generators driveably coupled to the gear train. A selectively engageable input brake mechanism is provided to create a reaction torque for the motor/generators thereby enabling the motor/generators to be used with additive power for electric propulsion or regenerative braking. The input brake improves electrical power to mechanical power conversion efficiency by reducing power circulation when the EVT is operated in electric drive, engine off mode.