A system and method for estimating a wheel speed of a vehicle are provided. The system includes wheel speed sensor that detects a rotation speed of a wheel of a vehicle and a motor speed sensor that detects a speed of the driving motor. A controller receives a signal of the wheel speed sensor, a signal of the motor speed sensor, and information regarding a gear stage indicating current gear stage status of the transmission, and estimates a wheel speed including direction information of wheel rotation.

A system and method for estimating a wheel speed of a vehicle are provided. The system includes wheel speed sensor that detects a rotation speed of a wheel of a vehicle and a motor speed sensor that detects a speed of the driving motor. A controller receives a signal of the wheel speed sensor, a signal of the motor speed sensor, and information regarding a gear stage indicating current gear stage status of the transmission, and estimates a wheel speed including direction information of wheel rotation.

A driving torque command generating apparatus and method of an eco-friendly vehicle are provided. The apparatus and method obtain rapid reaction and response of the vehicle in response to a driving input while effectively reducing NVH problems caused by torsion and backlash of a drive system even during a significant change in driving force caused by the driving input. Torsional state information of a vehicle drive system is obtained from input information regarding a motor speed and a wheel speed detected by a motor speed detector and a wheel speed detector. A motor torque command is generated based on a driving input value input by a driving input value detector and the obtained torsional state information.

In some implementations, a controller may obtain, during an event, pressure data regarding an amount of pressure of fluid associated with a component of the machine. The controller may obtain, during the event, flow data regarding a flow of the fluid associated with the component of the machine. The controller may determine, based on the pressure data and the flow data, an amount of wear of a track of the machine. The controller may perform an action based on the amount of wear of the track of the machine.

In some implementations, a controller may obtain, during an event, pressure data regarding an amount of pressure of fluid associated with a component of the machine. The controller may obtain, during the event, flow data regarding a flow of the fluid associated with the component of the machine. The controller may determine, based on the pressure data and the flow data, an amount of wear of a track of the machine. The controller may perform an action based on the amount of wear of the track of the machine.

The invention relates to a linear actuator (1) for an automobile transmission comprising an electric motor (6) for moving a transmission control member (5) between a plurality of shift positions, a spring (15) for driving the transmission control member (5) to an end position of the shift range in case of electric power failure, and a worm screw (7) to drive a displaceable worm wheel (10) with a pinion (11) meshing with a displaceable gear rack (12). The transmission control member (5) is displaceably coupled to the worm wheel (10). The gear rack (2) is blocked by an electrically activated lock against linear displacement with the spring (15) in a compressed state such that upon interruption of power supply to the lock the gear rack (12) is released and linearly displaced by the spring (15) thereby shifting the transmission control element (5) to its end position.

Systems and methods for improving shifting of a transmission are described. The systems and methods may be applied to automatic or manual transmissions, but the systems and methods may be particularly suited for automatic transmissions. In one example, electrical input to an alternator and electrical output from the alternator is adjusted in response to a request to upshift a transmission.

Systems and methods for improving shifting of a transmission are described. The systems and methods may be applied to automatic or manual transmissions, but the systems and methods may be particularly suited for automatic transmissions. In one example, electrical input to an alternator and electrical output from the alternator is adjusted in response to a request to upshift a transmission.

Provided is a hydraulic control device in which in the rotation control of the second pump, the required discharge pressure of the second pump can be more reliably maintained below a predetermined pressure in the control that keeps the target rotation speed constant after the feedback control ends. In the rotation control of the second pump, in the control which keeps the target rotation speed constant after the feedback control ends, the rotation of the second pump is controlled by adding a predetermined addition rotation speed to the target rotation speed corresponding to the required discharge pressure. Since the required discharge pressure of the second pump can be maintained below a predetermined pressure in the fixed mode by the addition rotation speed, it can reliably obtain the effect of reducing the work load of the first pump and contribute to the improvement of the fuel efficiency of the vehicle.

A shift device includes a knob that is rotatable to select one of a plurality of gear modes of a transmission of a vehicle and a cam member that engages a portion of the knob in a rotation direction of the knob. The cam member rotates integrally with the knob only when engaged with the portion of the knob. The shift device further includes a drive source that rotates the cam member and a controller. The controller controls the drive source to rotate the knob to an operation position corresponding to a predetermined gear mode if a particular condition is satisfied. The controller decreases a voltage applied to the drive source when the cam member is rotated in at least a pre-engagement section until the cam member engages the portion of the knob from the voltage applied when the cam member is rotated in other sections.