Magnetic control pedal apparatus
US4364022A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Sep 11, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/147
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control pedal apparatus (10) including a frame member (12), a Hall effect device (52) for generating a control signal responsive to an applied magnetic field, a pedal (14) having a magnet (16) and movable between first and second positions at which a magnetic pathway is opened and closed, respectively, and a movable pedal support (18) for conducting the field between the magnet (16) and the device (52) when the pedal (14) is at the second position. Prior pedal apparatus have wires, connected between the device and an electrical control circuit, to control vehicle direction and which can fail due to flexing, together with a linkage connected to an accelerator portion to control vehicle speed. The pedal support of this invention conducts the magnetic field to a fixed Hall effect device, whereby the wires are eliminated, and the pedal support is movable to generate pulses to control vehicle speed whereby the linkage is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.