Motor control device for working vehicle
US8655557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2010 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Jul 31, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2059/467
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A working vehicle motor control device includes: a rotational speed control device that controls a motor rotational speed in accordance with an operation amount of an accelerator pedal; a travel drive device that transmits rotation of the motor to wheels through a torque converter and a transmission; a speed ratio detection device that detects a speed ratio of an input shaft and an output shaft of the torque converter; and a speed restriction device that restricts a maximum rotational speed of the motor in accordance with a speed ratio detected by the speed ratio detection device. In the working vehicle motor control device, the speed restriction device restricts the maximum rotational speed when a detected speed ratio is in an acceleration region of the motor rotational speed to less than the maximum rotational speed when a detected speed ratio is in a non-acceleration region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.