A vehicle control system which can ensure high reliability, real-time processing, and expandability with a simplified ECU configuration and a low cost by backing up an error through coordination in the entire system without increasing a degree of redundancy of individual controllers beyond the least necessary level. The vehicle control system comprises a sensor controller for taking in sensor signals indicating a status variable of a vehicle and an operation amount applied from a driver, a command controller for generating a control target value based on the sensor signals taken in by the sensor controller, and an actuator controller for receiving the control target value from the command controller and operating an actuator to control the vehicle, those three controller being interconnected via a network. The actuator controller includes a control target value generating unit for generating a control target value based on the sensor signals taken in by the sensor controller and received by the actuator controller via the network when the control target value generated by the command controller is abnormal, and controls the actuator in accordance with the control target value generated by the control target value generating unit.

Vehicle Control System

A multi-speed transmission has three planetary gear sets and six torque-transmitting mechanism packaged in various ones of five zones within a transmission cavity. Each planetary gear set has a ring gear member, a sun gear member and a carrier member that rotatably supports a plurality of pinion gears that intermesh with both the sun gear member and the ring gear member. Certain members are continuously connected for common rotation. Specifically, an interconnecting member continuously interconnects for common rotation the carrier member of the first planetary gear set, the sun gear member of the second planetary gear set and the ring gear member of the third planetary gear set. Additionally, the sun gear member of the first planetary gear set is grounded to the transmission casing via a radially-extending structural member.

Multi-speed transmission

A controllable selectable one-way clutch is provided for use within a hybrid transmission. The clutch comprises an outer and inner race, and a first and second selector plate. A transmission motor controller synchronizes the speeds of the races to facilitate application and release of the clutch, and a transmission controller communicates a signal to the clutch for re-positioning of the plates to apply and release the clutch. The clutch has three operational modes, including freewheeling and holding torque in one direction or both directions. A method is also provided for applying a selectable one-way clutch in a vehicle having a hybrid transmission with a motor controller and a transmission controller, including synchronizing the clutch speed using the motor controller, detecting the direction of the race speed difference, communicating the race speed difference to the transmission controller, and selecting between the clutch operational modes in response to the detected speed difference.

Selectable one-way clutch

The invention relates to a multi-stage transmission provided with an input shaft (3), which is connected to a shiftable front-mounted planet gear set (10), with an output shaft (4), which is connected to a shiftable main planet gear set (20), and with a number of shifting elements (A to F) whose selective closing enables the shifting of at least six forward speeds without range shift. An output element of the front-mounted planet gear set (10) can be connected to a first input element of the main planet gear set (20) via a first shifting element (A) and can be connected to a second input element of the main planet gear set (20) via a second shifting element (B). The input shaft (3) can be connected to a third input element of the main planet gear set (20) via a fifth shifting element (E). Preferably, a sun gear (11) of the front-mounted planet gear set (10) can be fixed via a sixth shifting element (F) mounted on the side of the front-mounted planet gear set (10) facing away from the main planet gear set (20). The front-mounted planet gear set (10) is provided in the form of a Plus gearing having inner and outer planet gears (12, 13) whose webs (15, 16) are interconnected.

Multi-stage transmission

A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states. A method for controlling the powertrain system includes determining a current transmission operating range state and engine state, determining at least one potential transmission operating range state and engine state, providing an operator torque request, determining preferability factors associated with the current transmission operating range state and engine state, and potential transmission operating range states and engine states, preferentially weighting the preferability factors for the current transmission operating range state and engine state, and selectively commanding changing the current transmission operating range state and engine state based upon the preferability factors and the operator torque request.

Method and apparatus for maximum and minimum output torque performance by selection of hybrid range state and input speed for a hybrid powertrain system

Ein Getriebe umfasst mindestens einen Planetenradsatz, ein erstes Kupplungspaket, das mehrere erste Kupplungsplatten aufweist, und ein zweites Kupplungspaket, das axial in Reihe mit dem ersten Kupplungspaket angeordnet ist. Das zweite Kupplungspaket weist mehrere zweite Kupplungsplatten auf. Ein Kupplungseinruckelement, das dem zweiten Kupplungspaket zugeordnet ist, steht durch die ersten Kupplungsplatten des ersten Kupplungspaketes hindurch vor. Ein im Wesentlichen zylindrisches Abdichtelement ist zwischen dem ersten Kupplungspaket und dem zweiten Kupplungspaket angeordnet, um eine wesentliche Kuhlfluidstromung zwischen dem ersten und dem zweiten Kupplungspaket zu verhindern und somit Kuhlfluid durch das zweite Kupplungspaket hindurch zu lenken, wenn das zweite Kupplungspaket durch das Kupplungseinruckelement eingeruckt ist.

Abdichthülse für ein hydraulisches Stellglied

The transmission (10) has two connecting units (34, 35) for connecting two knots (22, 24) of a planetary gear set (16) with two respective knots (42, 44) of another planetary gear set (18). Six torque transmission mechanisms are selectively engageable for connecting respective knots with each other. The mechanisms are selectively engaged in combinations of three for producing eight forward gears and a reverse gear between a drive unit (12) and an output shaft (14). The drive unit is connected with a knot (56) of a third planetary gear set (20).

Transmission i.e. eight-gear transmission, has connecting units, and six torque transmission mechanisms selectively engaged in combinations of three for producing eight forward gears and reverse gear between drive unit and output shaft

A transmission includes an input member, an output transfer gear, first and second shaft members, a countershaft, a reverse shaft, a plurality of co-planar gear sets, and a plurality of torque transmitting devices. The torque transmitting devices include a plurality of synchronizer assemblies and a dual clutch assembly. The transmission is operable to provide at least one reverse speed ratio and a plurality of forward speed ratios between the input member and the output member.

Dual clutch multi-speed transmission having one countershaft and a reverse shaft

The transaxle has a power transfer member i.e. chain, coupled to a transfer gear for transferring rotational energy from the transfer gear to another transfer gear. A final drive planetary gear set comprises a final drive member coupled to a transmission output member and another final drive member coupled to a transmission housing (12) and a third final drive member. A differential gear set comprises a differential housing coupled to the third drive member and the gears rotatably supported in the differential housing. The gears are rotatably fixed to two road wheels, respectively.

Transaxle for front wheel drive vehicle, has differential gear set comprising differential housing coupled to drive member and gears rotatably supported in differential housing, and gears rotatably fixed to two road wheels, respectively

The clutches and brake are selectively engaged to interconnect the carrier elements, sun gears and ring gears of the planetary gear sets (14,16,18,20) and a transmission housing (50). The clutches and brake are selectively engaged in different combinations to establish eight forward speed ratios and one reverse speed ratio between the input and output elements (12,22).

Multiple-speed transmission e.g. eight speed transmission has clutches and brake that are engaged in different combinations to establish eight forward speed ratios and one reverse speed ratio between input and output elements

Scott H. Wittkopp

Papers

Abdichthülse für ein hydraulisches Stellglied

Transmission i.e. eight-gear transmission, has connecting units, and six torque transmission mechanisms selectively engaged in combinations of three for producing eight forward gears and reverse gear between drive unit and output shaft

Dual clutch multi-speed transmission having one countershaft and a reverse shaft

Transaxle for front wheel drive vehicle, has differential gear set comprising differential housing coupled to drive member and gears rotatably supported in differential housing, and gears rotatably fixed to two road wheels, respectively

Multiple-speed transmission e.g. eight speed transmission has clutches and brake that are engaged in different combinations to establish eight forward speed ratios and one reverse speed ratio between input and output elements