US 12,378,748 B2
Load-handling vehicle
Vincent Chaillou, Ancenis (FR)
Assigned to MANITOU BF, Ancenis (FR)
Appl. No. 17/612,998
Filed by MANITOU BF, Ancenis (FR)
PCT Filed May 12, 2020, PCT No. PCT/FR2020/050785
§ 371(c)(1), (2) Date Nov. 19, 2021,
PCT Pub. No. WO2020/245518, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 19 05870 (FR), filed on Jun. 3, 2019.
Prior Publication US 2022/0205214 A1, Jun. 30, 2022
Int. Cl. E02F 3/43 (2006.01); E02F 3/28 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); E02F 9/26 (2006.01)
CPC E02F 3/431 (2013.01) [E02F 3/283 (2013.01); E02F 9/2004 (2013.01); E02F 9/2246 (2013.01); E02F 9/2253 (2013.01); E02F 9/264 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A load-handling vehicle comprising: a wheeled chassis, and, supported by said chassis,
an internal combustion heat engine,
a power transmission mechanism configured to transmit the power of the heat engine to the wheels of the chassis,
a bucket,
a system for driving the movement of said bucket,
a control unit,
an accelerator pedal, the control unit being configured to generate a rotation speed control setpoint for the heat engine as a function of the position of the accelerator pedal,
a control member that can be manually actuated by the driver of the vehicle, the control unit being configured to generate control setpoints of the system for driving the movement of the bucket as a function of the actuation of the control member,
a system for detecting the movements of the bucket with respect to the chassis or to the system for driving the movement of the bucket configured to deliver data representative of the movements of the bucket with respect to the chassis or to the system for driving the movement of the bucket to the control unit,
wherein the power transmission mechanism is configured such that a reduction of the speed of rotation of the heat engine causes a lowering of the torque supplied to the wheels of the chassis, where the vehicle comprises at least one mode of operation in which the control unit is configured to, as a function of the data supplied by the system for detecting the movements of the bucket and of the control setpoints of the system for driving the movement of the bucket, reduce the speed of rotation of the internal combustion heat engine to a value lower than the speed control setpoint value corresponding to the position of the accelerator pedal when the detected movements of the bucket do not conform to the control movements of the bucket during a filling operation,
wherein the control unit is configured to determine, as a function of the control setpoints of the system for driving the movement of the bucket, any one of a theoretical travel of movement of the bucket, speed of movement of the bucket, or acceleration of movement of the bucket, when the control member is in the actuated state, and to determine, as a function of the data supplied by the system for detecting the movements of the bucket, any one of a real travel of movement of the bucket, speed of movement of the bucket, or acceleration of movement of the bucket, in that the control unit is configured to compare the theoretical and real values of the travel of movement, speed of movement, or acceleration of movement of the bucket and to reduce the speed of rotation of the heat engine to a value lower than the speed control setpoint value corresponding to the position of the accelerator pedal as a function of the comparison result.