An automated manual transmission (AMT) shift shock reduction control method may include a compressor delay control that is configured to keep an operation of a compressor as a non-operation state until a delay time is reached during a shift control, when an air conditioner signal and a shift signal are detected by an Engine Management System (EMS).

A method for controlling the transmission of a working machine, by which, with at least one sensor of the working machine, at least one specific parameter is determined and transmitted to a control unit for controlling the transmission. The working machine has a lifting mechanism and the at least one specific parameter which characterizes an actuation condition of the lifting mechanism. A predetermined shifting strategy is adapted, by the method, as a function of the at least one specific parameter.

A control unit (11) that outputs a shift signal to a transmission (4) when the control unit recognizes that the bucket (1) is in a loading position, such that the transmission (4) shifts not to the next-higher gear ratio, but to a further, even higher, gear ratio.

A traction force limiting device for a working machine with a continuously variable transmission that comprises a variator for adjusting the rotational speed ratio of the transmission independently of the torque ratio of the transmission. The traction force limiting device has a traction force interface for providing information to determine a traction force of the working machine, a limit value interface for setting a traction force limit value of the working machine and a control interface for emitting a control signal to the variator. Additionally, the traction force limiting device has a computer unit designed, on a basis of information provided via the traction force interface, to determine the traction force, to compare the traction force determined with the traction force limit value set via the limit value interface, and to control the variator in such manner that the traction force does not exceed the traction force limit value.

A traction force limiting device for a working machine with a continuously variable transmission that comprises a variator for adjusting the rotational speed ratio of the transmission independently of the torque ratio of the transmission. The traction force limiting device has a traction force interface for providing information to determine a traction force of the working machine, a limit value interface for setting a traction force limit value of the working machine and a control interface for emitting a control signal to the variator. Additionally, the traction force limiting device has a computer unit designed, on a basis of information provided via the traction force interface, to determine the traction force, to compare the traction force determined with the traction force limit value set via the limit value interface, and to control the variator in such manner that the traction force does not exceed the traction force limit value.

A vehicle control device is for a vehicle having a drive source, and an automatic transmission connected to the drive source, the automatic transmission having an engagement element for disconnecting/connecting transmission of a driving force and a variator placed further upstream than the engagement element. The vehicle control device includes first and second control units. The first control unit is configured to execute sailing stop control to stop the drive source and to put the automatic transmission into a neutral state when a sailing stop condition is established. The second control unit is configured to start the drive source and to implement downshifting of the variator when a size of a deceleration level is a prescribed value or greater when the sailing stop control is cancelled due to a prescribed sailing stop cancellation condition among sailing stop cancellation conditions being established, and to engage the engagement element after the downshifting.

A vehicle control device is for a vehicle having a drive source, and an automatic transmission connected to the drive source, the automatic transmission having an engagement element for disconnecting/connecting transmission of a driving force and a variator placed further upstream than the engagement element. The vehicle control device includes first and second control units. The first control unit is configured to execute sailing stop control to stop the drive source and to put the automatic transmission into a neutral state when a sailing stop condition is established. The second control unit is configured to start the drive source and to implement downshifting of the variator when a size of a deceleration level is a prescribed value or greater when the sailing stop control is cancelled due to a prescribed sailing stop cancellation condition among sailing stop cancellation conditions being established, and to engage the engagement element after the downshifting.

A wheel loader includes a boom, a forward clutch, and a controller configured to control hydraulic pressure of hydraulic oil supplied to the forward clutch. The controller performs clutch hydraulic pressure control for bringing the forward clutch into a semi-engagement state by controlling the hydraulic pressure of the hydraulic oil supplied to the forward clutch on condition that the wheel loader advances while raising the boom in at least a loaded state.

A method for controlling a multi-speed transmission for an engine powering a marine propulsion device on a marine vessel is disclosed. The method is carried out by a control module and includes determining a load of the engine, determining speed of the engine, and determining a pitch of the marine vessel. The method includes switching between a first gear ratio and a second gear ratio of the transmission based on the engine load, the engine speed, and the vessel pitch.

A back-up control unit of a back-up power source device executes: a battery failure determination process of determining whether or not a battery failure has been detected by a failure detecting unit; when it is determined that battery failure has been detected in the battery failure determination process, a switching instruction determination process for determining, on the basis of an instruction signal from a monitor circuit, whether or not an instruction to switch to a P range has been made by a user; and when it is determined that a switching instruction has been made in the switching instruction determination process, a shifting instruction process for starting power supply from a back-up power source to a shift control unit and instructing the shift control unit to shift to the P range.