Abstract: An engine control device for a work vehicle decides that an idling stop condition is established when the front device is in the unengaged state, the steering device is in the unengaged state, the accelerator pedal is in the non-operation state, either the transmission is in the neutral state or the parking brake device is in the engaged state or the transmission is in the neutral state and also the parking brake device is in the engaged state, and the service brake device is in the unengaged state, and stops an engine when it is decided that it passes the predetermined length of time since it was decided that the idling stop condition was established.

Abstract: Provided are a wire harness and a connector (40) allowing a routing path for an electrical wire (100) to be set without increasing the number of components and without requiring a complicated operation. A plurality of connectors (40) are aligned in a direction intersecting a front-rear direction. Each connector (40) is provided with a housing (41) capable of being fitted into a counterpart housing (71). The front face of the housing (41) is oriented in the direction facing the counterpart housing (71) at fitting both the housings (41, 71). The housing (41) is provided with a plurality of through portions (52A, 52B) passing through the housing (41) in the direction intersecting the front-rear direction. Each of the plurality of through portions (52A, 52B) has a space capable of routing an electrical wire (100) extended out from each connector (40).

Abstract: A work vehicle includes: a hydraulic pump driven by an engine; a rotational speed detection unit that detects an actual rotational speed of the engine; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a torque control unit that decreases output torque of the engine according to decrease of a detected remaining amount of the reducing agent solution; and a storage device that stores a threshold value not less than an engine rotational speed at which the hydraulic pump starts discharge, wherein when the actual rotational speed of the engine is not more than the threshold value, the torque control unit does not decrease the output torque of the engine regardless of the remaining amount of the reducing agent solution detected by the remaining amount detection device.

Abstract: Provided is a work vehicle which is capable of appropriately setting the height of a work tool as a control threshold value for a ride control device or an automatic transmission control device, and which is excellent in operability, travel stability, and work efficiency. A value detected by an angle sensor (39) when a signal import switch (46) is operated by an operator is stored in a height position storage unit (35b) of a main controller (35) as height position information about a bucket (13) for excavation work. In the height position storage unit (35b), the height position of the bucket (13) for hauling work and the height position of the bucket (13) for loading work are stored in advance as offset values from the height position information about the bucket (13) for excavation work. In this way, the ride control device or the automatic transmission control device can be appropriately controlled regardless of the preference or habit of the operator.

Abstract: It is aimed to enable a connecting operation to smoothly proceed by preventing erroneous connection of a connector (10). A connector structure includes a housing (20) in which a terminal fitting (60) is to be accommodated, a wire (70) to be connected to the terminal fitting (60) and pulled out from a wire pull-out surface (24) of the housing (20), and an extra-length adjusting portion (21) provided continuously to the housing (20) and configured to hold the wire (70) pulled out from the wire pull-out surface (24) in a state loosened into a substantially U shape or wounded one or more turns and variably adjust the amount of loosening or winding of the wire.

Abstract: Provided is an electronic circuit unit which includes a circuit board, a case for the circuit board and a connector for external connection and can be miniaturized and simplified in structure. This electronic circuit unit includes a circuit board (10) provided with a plurality of conductors for connection (14) on an edge part (12), a case (CS) configured to house the circuit board, and a plurality of terminals (30) provided on ends of a plurality of wires (W). The case (CS) integrally includes a board housing portion (20) and a terminal holding portion (40). The board housing portion (20) holds the circuit board (10) at a specific board holding position. The terminal holding portion (40) holds these terminals (30) in such an arrangement that each terminal (30) comes into contact with each conductor for connection (14) of the circuit board (10) at the board holding position.

Abstract: A work vehicle, includes: a lift arm rotatably linked to a front portion of a vehicle body of a work vehicle so as to be allowed to swing along an up/down direction; an operation lever that can be operated within a range between a raising operation end position and a lowering operation end position, and is operated to raise and lower the lift arm; an up detent mechanism having a holding function for holding the operation lever at the raising operation end position once the operation lever is operated to the raising operation end position; and a down detent mechanism having a holding function for holding the operation lever at the lowering operation end position once the operation lever is operated to the lowering operation end position, wherein: when an angle of the lift arm becomes greater than a predetermined upper limit, the holding function of the up detent mechanism and the holding function of the down detent mechanism are disengaged.

Abstract: An engine control device for work vehicle includes: a target rotation speed setting unit that sets a target rotation speed of an engine corresponding to an operation amount of an accelerator pedal; a rotation speed control unit that controls a rotation speed of the engine according to the target rotation speed; a travel driving unit that transmits rotation of the engine to wheels via a torque converter; a speed ratio detection unit that detects a speed ratio between an input shaft and an output shaft of the torque converter; and a target rotation speed correction unit that corrects the target rotation speed set by the target rotation speed setting unit so as to increase the target rotation speed based on the speed ratio when the operation amount of the accelerator pedal is smaller than a predetermined value and the speed ratio detected by the speed ratio detection unit is smaller than a predetermined value within a range which is equal to or greater than 0 and less than 1.

Abstract: A clutch control device for a work vehicle includes a determination unit that determines as to whether or not a clutch cutoff condition has been established based upon whether or not the accelerator pedal is being operated, as determined by the accelerator pedal operation determination unit, the vehicle speed of the work vehicle detected by the vehicle speed detection unit and the braking force of the work vehicle detected by the braking force detection unit; and a clutch control unit that controls engagement/release of a clutch so as to release the clutch when the determination unit determines that the clutch cutoff condition has been established.

Abstract: Provided is a connector (10) whereof a cover (60) is prevented from falling off a housing (20). The connector (10) is provided with: the housing (20), which is capable of fitting to a counterpart housing (90) and arranged in proximity or in contact with a peripheral member such as a solenoid (80) when fitting to the counterpart housing (90); and the cover (60), which is independent from the housing (20) and attached to the housing (20) so as to cover an electric wire (100) drawn out from a wire outdrawing surface of this housing (20). When the housing (20) fits to the counterpart housing (90), the cover (60) is faced by the peripheral member in a separating direction from the housing (20) so that the cover (60) is arranged to be interposed between the housing (20) and the peripheral member such as the solenoid (80).

Abstract: A work vehicle including a front work device, contains: a variable displacement hydraulic pump that is driven by an engine and supplies pressure oil to an actuator that drives the front work device; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a remaining amount detection device that detects a remaining amount of the reducing agent solution in the reducing agent tank; and a control unit that decreases output torque of the engine and also decreases a rotational speed of the engine in a rated point according to decrease of the remaining amount of the reducing agent solution detected by the remaining amount detection device.

Abstract: A cooling fan control unit, in response to an operation performed at the rotation direction selector switch to select a reverse rotation setting while the cooling fan is rotating forward, lowers a relief pressure setting at the variable relief valve to a predetermined lower limit value over a predetermined length of time, and once the discharge pressure at the hydraulic pump detected by the pressure sensor is lowered to a predetermined switch-over pressure, executes control so as to switch the direction of flow of pressure oil to the hydraulic motor to the reverse direction by switching the direction switching valve and raises the relief pressure setting at the variable relief valve to a reverse rotation pressure setting, at which the hydraulic motor rotates in the reverse direction, over a predetermined length of time.

Abstract: It is aimed to enable a connecting operation to smoothly proceed by preventing erroneous connection of a connector (10). A connector structure includes a housing (20) in which a terminal fitting (60) is to be accommodated, a wire (70) to be connected to the terminal fitting (60) and pulled out from a wire pull-out surface (24) of the housing (20), and an extra-length adjusting portion (21) provided continuously to the housing (20) and configured to hold the wire (70) pulled out from the wire pull-out surface (24) in a state loosened into a substantially U shape or wounded one or more turns and variably adjust the amount of loosening or winding of the wire.

Abstract: A work vehicle equipped with an HST traveling drive device, includes: an operation quantity detector that detects an operation quantity representing an extent to which an accelerator pedal is operated; a rotation rate detector that detects an actual rotation rate at a prime mover; a requested rotation rate calculation unit that calculates a requested rotation rate for the prime mover based upon the operation quantity detected by the operation quantity detector; and a prime mover control unit that controls the actual rotation rate based upon the requested rotation rate calculated by the requested rotation rate calculation unit. When the requested rotation rate is higher than a predetermined value, the requested rotation rate calculation unit calculates a rate of acceleration for the requested rotation rate based upon a difference between the requested and the actual rotation rate detected by the rotation rate detector and calculates the requested rotation rate based upon the calculated rate of acceleration.

Abstract: A prime mover control device for a work vehicle, includes: a rotation speed control unit that controls a rotation speed of a prime mover in correspondence to an operation quantity of an accelerator operation member; a temperature detection unit that detects a temperature of cooling oil used to cool a brake; and a speed limiting unit that limits a maximum rotation speed of the prime mover by setting a lower limit for the maximum rotation speed when the temperature of the cooling oil detected by the temperature detection unit is higher than a predetermined temperature, compared to a limit set when the temperature of the cooling oil detected by the temperature detection unit is lower than the predetermined temperature, wherein: a maximum vehicle speed is limited by limiting the maximum rotation speed of the prime mover by the speed limiting unit.

Abstract: A connector (40) is avoided from becoming large sized by avoiding a guiding used upon fitting from becoming large. A counterpart housing (71) includes a cylindrical hood (72). A housing (41) includes a housing body (42) that can be fitted in the hood (72). The counterpart housing (71) is allowed to be angularly displaced about an axis parallel to a fitting direction of the housings (41, 71). One side of an opening edge of the hood (72) is configured as a counterpart arc portion (74) that curves in an arc shape along an angular displacement direction. One side of a front face of the housing body (42) in the fitting direction is configured as an arc portion (64) that curves in an arc shape along the angular displacement direction, and is configured capable of entering into the hood (72) by being guided by the counterpart arc portion (74).

Abstract: A wiring module 10 to be attached to a battery module M1 including a single cell group 11 in which a plurality of single cells 12 having positive and negative electrode terminals 13 are lined up includes a connection member 19 that is made of aluminum or an aluminum alloy and that electrically connects adjacent electrode terminals 13 to each other and a voltage detection wire 45 formed by coating a core wire 46 made of aluminum or aluminum alloy with an insulation coating 47. An exposed core wire 46 that is exposed at an end portion of the voltage detection wire 45 is connected to the connection member 19 by welding.

Abstract: A fitting work for a connector (40) and a counterpart connector (70) can be performed smoothly. The connector (40) includes a housing body (42) from which an electrical wire (100) connected to a terminal metal fitting (30) extends out from a rear face thereof; and a guide (43) arranged at a rear side of the housing body (42) and configured by having the electrical wire (100) arranged within a through portion (52) passing through in a direction intersecting a front-rear direction, the electrical wire (100) extending out in both directions through both end openings of the through portion (52). The electrical wire (100) extending out in both directions is configured of the electrical wire (100) configuring a main line (10) of a wire harness.

Abstract: An incorrect fitting of a connector (40) is prevented, and a fitting work is enabled to be performed smoothly. A plurality of connectors (40), each having a housing (41) capable of fitting with its counterpart housing (71), is arranged in a line. Upon fitting of the housings (41, 71), a front face of each housing (41) is arranged so as to face a direction facing its counterpart housing (71), and an aligning direction of the connectors (40) is set to be a direction intersecting a front-rear direction. Through portions (52, 52E) are provided in the housings (41), and upon fitting of the housings (41, 71), each connector (40) is arranged at a position capable of facing its counterpart connector (70) by an aligning member (80, 100) that is passed through the respective through portions (52, 52E).

Abstract: Provided are a wire harness and a connector (40) allowing a routing path for an electrical wire (100) to be set without increasing the number of components and without requiring a complicated operation. A plurality of connectors (40) are aligned in a direction intersecting a front-rear direction. Each connector (40) is provided with a housing (41) capable of being fitted into a counterpart housing (71). The front face of the housing (41) is oriented in the direction facing the counterpart housing (71) at fitting both the housings (41, 71). The housing (41) is provided with a plurality of through portions (52A, 52B) passing through the housing (41) in the direction intersecting the front-rear direction. Each of the plurality of through portions (52A, 52B) has a space capable of routing an electrical wire (100) extended out from each connector (40).