The invention relates to a method of detecting a change in the direction of rotation of a rotatable shaft (5) based on non-direction sensitive rotational speed data, the method comprising the steps: .circle-solid.determining a speed (17) of a rotatable shaft (5) of a vehicle transmission (3) based on non-direction sensitive speed data received from a non-direction sensitive rotational speed sensor (7), wherein the speed (17) of the rotatable shaft (5) is the absolute value of the rotational speed of the rotatable shaft (5); .circle-solid.determining, based on the speed (17) of the rotatable shaft (5), if the duration of a first continuous time interval (20) during which the speed (17) of the rotatable shaft (5) is continually smaller than a first predetermined speed value (18) is shorter than a predetermined duration (24); and .circle-solid.detecting that a change in the direction of rotation of the rotatable shaft (5) has occurred during the first continuous time interval (20) if the duration of the first continuous time interval (20) is shorter than the predetermined duration (24). The invention further relates to a controller (8) for carrying out the method and to a driveline (100; 200) including the controller (8). The invention allows to determine a change in direction although the sensor as such is not direction sensitive. This is based on the insight that decelerating to a speed value below a threshold and subsequently accelerating again to a value which is above this threshold corresponds to a change in direction if this process occurs within a short time period.

A servo includes a motor having a rotating shaft, an output shaft disposed apart from the rotating shaft, a transmission mechanism to transmit mechanical power from the motor to the output shaft, a circuit board, a first detected member fixed to an end of the rotating shaft, a second detected member fixed to an end of the output shaft adjacent to the circuit board; and a first detecting member and a second detecting member mounted on the circuit board and configured to respectively detect rotational angles of the rotating shaft and the output shaft, bused on changes caused by rotation of the first detected member and the second detected member.

A control apparatus for a vehicle provided with drive wheels, an automatic transmission, and a manual shifting device for shifting the automatic transmission, the control apparatus includes an automatic parking control portion configured to implement an automatic parking control for automatically parking the vehicle in a predetermined parking space, and controls the automatic transmission to be shifted according to a shifting control signal corresponding to an operation of the manual shifting device, the automatic parking control portion comprising a shifting control portion configured to place the automatic transmission in a power-cutoff state in which a vehicle drive force is not transmitted to the drive wheels, when the manual shifting device is operated to a position a running direction in which is different from a running direction of the vehicle when the automatic parking control is implemented.

Provided is a wheel loader capable of automatically decreasing vehicle speed without making an operator feel discomfort during a loading operation. A wheel loader 1 mounted with a torque converter type traveling drive system comprises a controller 5 configured to control shifting of a transmission 32. When a vehicle body travels forward at vehicle speed corresponding to a second speed stage set greater by one speed stage than the lowest speed stage of the transmission 32 while operating the lift arm 21 upwardly, the controller 5 sets, as a gear ratio of the transmission 32, an intermediate gear ratio between a gear ratio corresponding to the second speed stage and a gear ratio corresponding to a first speed stage, and outputs a signal for selecting a combination of a plurality of gears corresponding to the set gear ratio to each first to fifth solenoid control valves 32A to 32E.

A range determination device is applied to an automatic transmission provided with an input portion, an output portion, and a range switching mechanism which transmits rotation of the input portion to the output portion, and which is operative to switch the range of the automatic transmission between a forward range and a reverse range, in which directions of transmitting rotation from the input portion to the output portion are different from each other. The range determination device includes a rotational state detection unit which detects a rotational state of a predetermined rotary member included in the range switching mechanism, and a determination unit which determines that the forward range or the reverse range is attained on the basis of the rotational state of the rotary member detected by the rotational state detection unit.

A controller is configured to output a control command for controlling at least one driveline component according to a control map. The control map may define a dependence of the control command on at least one of: a control position of an input device, and at least one first condition of the driveline. The controller may also be configured to receive at least one input signal, the input signal may have a plurality of signal values recorded at different times. The signal values of the at least one input signal are indicative of at least one of: the control position of the input device, the at least one first condition of the driveline, and at least one second condition of the driveline. The controller may also be configured to derive a feature from the plurality of signal values and adapt the control map based on the derived feature.

A method for controlling the operation of a transmission of a work vehicle based on the detection of unintended vehicle motion may generally include determining an intended driving direction for the work vehicle while the vehicle is positioned on a sloped surface and initiating a shifting procedure within the transmission for engaging an on-coming clutch associated with moving the work vehicle in the intended driving direction, wherein the on-coming clutch is initially engaged at an initial ramp rate. In addition, the method may include monitoring an acceleration of the work vehicle as the on-coming clutch is being engaged, determining a current travel direction for the work vehicle based on the monitored acceleration and, when the current travel direction differs from the intended driving direction, adjusting the initial ramp rate for engaging the on-coming clutch to an increased ramp rate.

A shift controller for a vehicle includes a shift switching unit, a rotation restricting element, and an electronic control unit. The electronic control unit is configured to: acquire a count value corresponding to a degree of rotation of an actuator; set a rotational position of the actuator when the count value does not change by restricting rotation of the actuator using the rotation restricting element as a reference position of the actuator corresponding to the predetermined shift position; and interrupt setting the reference position of the actuator and restart setting the reference position of the actuator when the rotation of the actuator is restricted and a supply voltage to the actuator is equal to or lower than a predetermined first voltage determination value or a variation in the count value while the rotation of the actuator is restricted is equal to or greater than a predetermined value.

A controller is provided to, in response to a speed of the vehicle exceeding an allowable speed based on a measured grade while the vehicle is running and in neutral or park, actuating a vehicle holding mechanism to stop the vehicle.

A continuously variable transmission (CVT) for a vehicle includes an input member, an output member and a variator assembly including a first pulley rotatably coupled to the input member and a second pulley rotatably coupled to the output. The first and second pulleys are rotatably coupled by a flexible continuous rotatable device. A control system is provided including an instruction set executable to determine an initial variator speed ratio of the variator assembly and detect an event causing a change in an operational state of the vehicle. The control system determines a compensation strategy to adjust the variator speed ratio in response to the change in the operational state of the vehicle and generates an adjusted variator speed ratio based upon the compensation strategy. The control system transmits the adjusted variator speed ratio to the variator assembly.