Patent classifications
B60Y2300/1888
CONTROL DEVICE OF POWER TRANSMISSION DEVICE, POWER TRANSMISSION DEVICE, AND CONTROL METHOD FOR POWER TRANSMISSION DEVICE
A power transmission device includes an input shaft, an output shaft, a differential device, a continuously variable transmission unit, and a control device. The differential device includes a first rotation element connected to the input shaft, a second rotation element connected to the output shaft, and a third rotation element. The continuously variable transmission unit includes a conversion unit configured to convert rotational power of the third rotation element into an other power, and a reconversion unit configured to reconvert the converted other power into the rotational power and supply the reconverted rotational power to the output shaft. The control device includes a continuously variable transmission control unit configured to generate a control signal of the continuously variable transmission unit such that the other power generated by the conversion unit exceeds the other power input to the reconversion unit.
Working machine
A working machine has a display device including: an area display portion to display a setting area for setting the first priority value, the second priority value, and the third priority value; a first axis display portion including a first scale portion indicating the first priority value depending on a distance from the reference point; a second axis display portion including a second scale portion indicating the second priority value depending on a distance from the reference point; a third axis display portion including a third scale portion indicating the third priority value depending on a distance from the reference point; and a marker display portion to be indicated in a partial area corresponding to at least two of the first axis display portion, the second axis display portion, and the third axis display portion.
Using skip fire with power take-off
Engine controllers and control schemes that facilitate skip fire engine operation in conjunction with use power take-off devices are described. In one aspect, a skip fire mode is exited when the power take-off unit is engaged and the current torque request exceeds a torque threshold. In some embodiments, the exit is delayed when the temperature of an after treatment system is below a designated temperature threshold. In another aspect, the engine transitions to the skip fire mode when the power take-off unit disengages. In some embodiments, exiting is conditioned on the current torque request being less than a torque threshold. In some embodiments, the transition is made immediately, whereas in others the transition only occurs when the power take-off unit is not reengaged for a period of time or is further conditioned on determining that the power take-off unit is likely to remain disengaged for the period of time.
WORK VEHICLE AND POWER TAKE-OFF APPARATUS FOR THE SAME
A work vehicle is provided with a support member that supports an output shaft of a wheel differential mechanism between a differential case and a planetary reduction mechanism. The support member is configured to engage the output shaft relatively immovably in a direction along the axis of the output shaft.
Dual motor electric driveline
The present document relates to a dual motor electric driveline, comprising: a transmission having an input and an output, a power take-off (PTO), a first electric motor drivingly engaged or selectively drivingly engaged with the input of the transmission, a second electric motor, a first clutching device, and a second clutching device, wherein the second electric motor is selectively drivingly engaged with the input of the transmission through the first clutching device, and wherein the second electric motor is selectively drivingly engaged with the PTO through the second clutching device. The present document further relates to a vehicle including said dual motor electric driveline, and to a method of controlling said dual motor electric driveline.
Power take-off transmission and agricultural machine
A power take-off transmission (1), for a motor vehicle, having a power take-off shaft (5), a transmission housing (3), at least two shiftable gears and at least one actuator for engaging the at least two gears. The at least one actuator has an actuating linkage (6) for mechanical actuation from outside the transmission housing (3). The actuating linkage (6) of the power take-off transmission (1) is coupled to an electric motor (8) located outside the transmission housing (3) and by which the at least one actuator can be actuated mechanically. The power take-off transmission can be installed on an agricultural working machine.
USING SKIP FIRE WITH POWER TAKE-OFF
Engine controllers and control schemes that facilitate skip fire engine operation in conjunction with use power take-off devices are described. In one aspect, a skip fire mode is exited when the power take-off unit is engaged and the current torque request exceeds a torque threshold. In some embodiments, the exit is delayed when the temperature of an after treatment system is below a designated temperature threshold. In another aspect, the engine transitions to the skip fire mode when the power take-off unit disengages. In some embodiments, exiting is conditioned on the current torque request being less than a torque threshold. In some embodiments, the transition is made immediately, whereas in others the transition only occurs when the power take-off unit is not reengaged for a period of time or is further conditioned on determining that the power take-off unit is likely to remain disengaged for the period of time.
Working device and working machine having the same
A working device connected to a traveling vehicle having a prime mover and configured to perform an agricultural work, includes: a working portion to perform an agricultural work; an electric motor to be driven by electric power; a power transmission mechanism to which power generated by the electric motor is inputted, configured to transmit the power to the working portion; a regeneration resistor to consume a regenerative power generated in the electric motor; a switch portion to switch, between a connecting state and a shut-off state, a state established between the electric motor and the regeneration resistor; and a controller portion to control driving of the electric motor and switching of the switch portion.
Tractor, Travel Power Transmission Apparatus for a Tractor, and Tractor Provided With the Travel Power Transmission Apparatus for a Tractor
Regarding a travel power transmission apparatus for a tractor, in which a creep speed changing apparatus is housed in a transmission case, the present invention increases a deceleration ratio throughout the creep speed change while suppressing an increase in the size of the transmission case. A creep speed changing apparatus includes: a first power transmission gear that is provided on an output shaft gear of a gear transmission; a first deceleration gear that is supported by a relay shaft so as to be rotatable relative to the relay shaft, in a state of meshing with the first power transmission gear; a second power transmission gear that is provided on the first deceleration gear; a second deceleration gear that is supported by an output shaft of the gear transmission so as to be rotatable relative to the output shaft, in a state of meshing with the second power transmission gear; a third power transmission gear that is provided on the second deceleration gear; a third deceleration gear that is supported by the relay shaft so as not to be rotatable relative to the relay shaft, in a state of meshing with the third power transmission gear; and a pair of deceleration gears that are provided so as to span the relay shaft and the output shaft, and decelerate power from the relay shaft and transmit the resulting power to the output shaft.
WORK VEHICLE
To provide a work vehicle that does not include a forward-reverse lever and is capable of stopping transmission of drive to a PTO shaft at a low cost when the vehicle is stopped or is moving backward. A work vehicle includes: a PTO shaft configured to transmit power to a work machine; a transmission; a forward pedal to be operated to move a traveling vehicle body forward; a switch configured to determine whether the forward pedal is operated; and a PTO clutch configured to switch the power to the PTO shaft to a non-transmission state when it is determined that the forward pedal is not operated based on a determination result of the switch. The forward pedal is provided on one of left and right sides of the transmission, and the switch is provided on the other of the left and right sides of the transmission.