Methods, systems, and apparatus for automatically changing vehicle driving modes. An automatic shift control system includes a transmission configured to provide engine output for movement of the vehicle and a navigation unit configured to obtain navigational information including a current location of the vehicle. The automatic shift control system includes an electronic control unit (ECU) connected to the navigation unit. The ECU is configured to determine a current route having multiple segments based on the current location and a destination location and determine a shift schedule based on a driver behavior pattern. The ECU is configured to control the transmission to cause shifts of the transmission based on the shift schedule and the current location.

Embodiments of the present invention provide a vehicle drivetrain assembly operable in a first mode and a second mode. The vehicle drivetrain assembly comprises: a drive unit arranged to generate power to drive a vehicle (1); an automatic transmission comprising a torque converter and operatively coupled to the drive unit to receive the power; and a control system comprising one or more controllers (11), the control system being arranged to adjustably limit the maximum torque delivered to the transmission from the drive unit. When the automatic transmission is in first gear with the torque converter stalled, the control system limits the maximum torque to a first level when the vehicle drivetrain assembly is in the first mode and to a second level when the vehicle drivetrain assembly is in the second mode, the first level being lower than the second level.

Embodiments of the present invention provide a vehicle drivetrain assembly operable in a first mode and a second mode. The vehicle drivetrain assembly comprises: a drive unit arranged to generate power to drive a vehicle (1); an automatic transmission comprising a torque converter and operatively coupled to the drive unit to receive the power; and a control system comprising one or more controllers (11), the control system being arranged to adjustably limit the maximum torque delivered to the transmission from the drive unit. When the automatic transmission is in first gear with the torque converter stalled, the control system limits the maximum torque to a first level when the vehicle drivetrain assembly is in the first mode and to a second level when the vehicle drivetrain assembly is in the second mode, the first level being lower than the second level.

A system for artificially interlocking an automatic transmission includes an engine RPM sensor and a vehicle speed sensor. A pair of ultrasonic sensors measure a relative velocity of a vehicle to a neighbor vehicle, and an angle measuring sensor measures a degree of an angle variation of a steering wheel. An ECU determines whether an accelerator pedal is erroneously operated by monitoring sensing signals of the engine RPM sensor and the vehicle speed sensor, to determine whether the accelerator pedal is erroneously operated by using sensing signals of the ultrasonic sensors, and to determine whether the accelerator pedal is erroneously operated by monitoring a signal of the angle measuring sensor. A transmission control unit (TCU) performs an artificial interlock control of the automatic transmission when a determination signal, which informs that the accelerator pedal is erroneously operated, is received from the ECU.

A system for artificially interlocking an automatic transmission includes an engine RPM sensor and a vehicle speed sensor. A pair of ultrasonic sensors measure a relative velocity of a vehicle to a neighbor vehicle, and an angle measuring sensor measures a degree of an angle variation of a steering wheel. An ECU determines whether an accelerator pedal is erroneously operated by monitoring sensing signals of the engine RPM sensor and the vehicle speed sensor, to determine whether the accelerator pedal is erroneously operated by using sensing signals of the ultrasonic sensors, and to determine whether the accelerator pedal is erroneously operated by monitoring a signal of the angle measuring sensor. A transmission control unit (TCU) performs an artificial interlock control of the automatic transmission when a determination signal, which informs that the accelerator pedal is erroneously operated, is received from the ECU.

Embodiments of the present invention provide a vehicle drivetrain assembly operable in a first mode and a second mode. The vehicle drivetrain assembly comprises: a drive unit arranged to generate power to drive a vehicle (1); an automatic transmission comprising a torque converter and operatively coupled to the drive unit to receive the power; and a control system comprising one or more controllers (11), the control system being arranged to adjustably limit the maximum torque delivered to the transmission from the drive unit. When the automatic transmission is in first gear with the torque converter stalled, the control system limits the maximum torque to a first level when the vehicle drivetrain assembly is in the first mode and to a second level when the vehicle drivetrain assembly is in the second mode, the first level being lower than the second level.

Embodiments of the present invention provide a vehicle drivetrain assembly operable in a first mode and a second mode. The vehicle drivetrain assembly comprises: a drive unit arranged to generate power to drive a vehicle (1); an automatic transmission comprising a torque converter and operatively coupled to the drive unit to receive the power; and a control system comprising one or more controllers (11), the control system being arranged to adjustably limit the maximum torque delivered to the transmission from the drive unit. When the automatic transmission is in first gear with the torque converter stalled, the control system limits the maximum torque to a first level when the vehicle drivetrain assembly is in the first mode and to a second level when the vehicle drivetrain assembly is in the second mode, the first level being lower than the second level.

A control arrangement and a method for controlling a powertrain of a medium-duty or heavy-duty vehicle. The method comprises a step of, in response to one or more driver-initiated indicators, adjusting a currently predicted route for the vehicle to a new predicted route, said new predicted route being predicted in consideration of information related to the one or more driver-initiated indicators. The method further comprises a step of, determining a driving strategy for an upcoming road section of the new predicted route based on characteristics of said upcoming road section. Moreover, the method comprises a step of controlling the powertrain in accordance with said determined driving strategy.

A control arrangement and a method for controlling a powertrain of a medium-duty or heavy-duty vehicle. The method comprises a step of, in response to one or more driver-initiated indicators, adjusting a currently predicted route for the vehicle to a new predicted route, said new predicted route being predicted in consideration of information related to the one or more driver-initiated indicators. The method further comprises a step of, determining a driving strategy for an upcoming road section of the new predicted route based on characteristics of said upcoming road section. Moreover, the method comprises a step of controlling the powertrain in accordance with said determined driving strategy.

An electrified powertrain that generates and transfers drive torque to a driveline of an electrified vehicle is provided. The electrified powertrain includes an electric drive module (EDM), and a controller. The EDM includes a first electric motor having a first output drivingly coupled to a first output shaft that drives a first drive wheel; a second electric motor having a second output selectively coupled to a second output shaft; and a clutch. The first output is coupled to the first output shaft through a differential. The second output is coupled to the second output shaft through the differential. The clutch moves between a first position that decouples the second electric motor from the second output shaft; and a second position that couples the second electric motor to the second output shaft.