| US 7,552,659 B2 | ||
| Gearshift device for automatic transmission | ||
| Atsushi Komatsu, Wako (Japan); Kotaro Hiramine, Wako (Japan); and Yoshiharu Saito, Wako (Japan) | ||
| Assigned to Honda Motor Co., Ltd., Tokyo (Japan) | ||
| Filed on Jun. 14, 2006, as Appl. No. 11/424,143. | ||
| Claims priority of application No. 2005-174844 (JP), filed on Jun. 15, 2005. | ||
| Prior Publication US 2006/0283276 A1, Dec. 21, 2006 | ||
| Int. Cl. F16H 59/00 (2006.01); B60K 20/00 (2006.01) | ||
| U.S. Cl. 74—335 [74/473.1] | 6 Claims |
| 1. A gearshift device for an automatic transmission, comprising:
a gearshift lever adapted to move a plurality of gear selection positions along a gearshift lever shifting groove; and
a gear selection position detecting unit which detects a gear selection position into which the gearshift lever is operated
to be shifted, the gear selection position detecting unit comprising:
a magnet plate which is disposed at a lower end portion of the gearshift lever and is adapted to move in accordance with a
movement of the gearshift lever; and
a plurality of primary magnetic sensors and at least one secondary magnetic sensor, which are disposed so as to oppose to
the magnet plate in a non-contact fashion at predetermined positions based on the individual gear selection positions, wherein
the primary magnetic sensor detects magnetic flux density of the magnet plate and outputs ON/OFF signals in accordance with
intensity of the detected magnetic flux density; and
the secondary magnetic sensor detects magnetic flux density of the magnet plate and outputs a linear output value according
to the detected magnitude of the magnetic flux density.
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