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

A selectively operable one-way torque-transmitting mechanism has a friction actuator, which is operable to adjust the position of torque-transmitting members between the inner and outer race of the selectable one-way torque-transmitting mechanism. In an unactuated position of the friction actuator, the torque-transmitting members will permit rotation in one direction and prevent rotation in the opposite direction. In the actuated position, the torque-transmitting directional functions are reversed.

Selectable one-way torque transmitter with a friction torque transmitter actuator

Es ist ein Getriebe vorgesehen, das ein Eingangselement, ein Ausgangselement, zwei Planetenradsatze, mehrere Kopplungselemente und mehrere Drehmomentubertragungseinrichtungen aufweist. Jeder der Planetenradsatze umfasst ein erstes, zweites und drittes Element. Die Drehmomentubertragungseinrichtungen umfassen Kupplungen und Bremsen.

Mehrganggetriebe mit zwei Planetenradsätzen

Es ist ein Getriebe vorgesehen, das ein Antriebselement, ein Abtriebselement, vier Planetenradsatze, mehrere Kopplungselemente und mehrere Drehmomentubertragungseinrichtungen aufweist. Jeder der Planetenradsatze umfasst ein erstes, zweites und drittes Element. Die Drehmomentubertragungseinrichtungen umfassen Kupplungen und Bremsen.

Mehrganggetriebe mit vier Planetenradsätzen

The transmission ie planetary transmission (14), has an interconnecting member (74) continuously connecting two members of respective planetary gear sets (40, 50) Five torque transmitting devices (80, 82, 84, 86, 88) selectively interconnect members of the planetary gear sets with a stationary member The torque-transmitting devices are engaged to establish eight forward speed ratios and a reverse speed ratio between an input member (17) and an output member (19), where the input member is continuously connected with a planet carrier assembly member (36)

Multi-speed transmission i.e. planetary transmission, for passenger vehicle e.g. car, has five torque-transmitting devices engaged to establish eight forward speed ratios and reverse speed ratio between input member and output member

The transmission (10) has an input (12) coupled to a node (14C) e.g. ring gear, of a planetary gear set (14) and an output (22) coupled to a node (18C) of a planetary gear set (18). Torque transmitting mechanisms are selectively engaged to interconnect one of the set of three members with one of the other members, and a stationary element. The torque transmitting mechanisms selectively engages in combinations of two members to establish eight forward speed ratios and a reverse speed ratio between the input and the output.

Multiple speed transmission, has torque transmitting mechanisms for selectively engaging in combinations of two members to establish eight forward speed ratios and reverse speed ratio between input and output

Scott H. Wittkopp

Papers

Selectable one-way torque transmitter with a friction torque transmitter actuator

Mehrganggetriebe mit zwei Planetenradsätzen

Mehrganggetriebe mit vier Planetenradsätzen

Multi-speed transmission i.e. planetary transmission, for passenger vehicle e.g. car, has five torque-transmitting devices engaged to establish eight forward speed ratios and reverse speed ratio between input member and output member

Multiple speed transmission, has torque transmitting mechanisms for selectively engaging in combinations of two members to establish eight forward speed ratios and reverse speed ratio between input and output