Shifting apparatus for vehicle

Patent metadata

Field	Value
Publication number	US-9982772-B2
Application number	US-201615331198-A
Country	US
Kind code	B2
Filing date	Oct 21, 2016
Priority date	May 20, 2016
Publication date	May 29, 2018
Grant date	May 29, 2018

Abstract

The present disclosure relates to a shifting apparatus for a vehicle which includes a transmission realizing series of multi shift stages so that shift stages are sequentially increased as shift ratios are decreased. The shifting apparatus may include a shift limit means designating a lowest shift stage having a largest shift ratio to a shift stage for climbing and limiting so that a driver may select the shift stage for climbing in an only case that the vehicle satisfies a predetermined climbing condition; a gradient angle sensor for measuring a climb gradient of the vehicle; a vehicle speed sensor for measuring a vehicle speed; and a controller determining the climbing condition based on signals of the gradient angle sensor and the vehicle speed sensor so as to control the shift limit means.

First claim

What is claimed is:

1. A shifting apparatus for a vehicle which includes a transmission realizing a plurality of shift stages, the shifting apparatus comprising:
a shift limit device configured to designate a lowest shift stage of the plurality of shift stages as a climbing shift stage having a largest shift ratio for climbing and to limit a driver to select the climbing shift stage in an only case that a vehicle satisfies a predetermined climbing condition;
a gradient angle sensor configured to measure a climb gradient of the vehicle;
a vehicle speed sensor configured to measure a vehicle speed; and
a controller configured to determine whether the predetermined climbing condition is satisfied based on signals of the gradient angle sensor and the vehicle speed sensor and to control the shift limit device.

2. The shifting apparatus of claim 1 , wherein the shift limit device is a solenoid actuator configured to block or release a route that a shift lever enters the climbing shift stage for climbing in shift lever patterns which are moving routes of the shift lever.

3. The shifting apparatus of claim 2 , wherein the controller is configured to control the solenoid actuator for limiting that the shift lever selects the climbing shift stage for climbing in case that the vehicle speed being inputted from the vehicle speed sensor is same to or less than a predetermined standard vehicle speed, and the climb gradient of the vehicle being inputted from the gradient angle sensor is same to or more than a predetermined standard angle.

4. The shifting apparatus of claim 1 , wherein the plurality of shift stages of the transmission except the climbing shift stage sequentially form 1-stage to N-stage from a shift stage having a shift ratio to be closest to the climbing shift stage,
where the N-stage means a highest shift stage having a smallest shift ratio among the plurality of shift stages.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Jang Sung Hwan

Classifications

• F16H61/18

  Preventing unintentional or unsafe shift {, e.g. preventing manual shift from highest gear to reverse gear} · CPC title

• F16H2059/663

  Road slope · CPC title

• F16H59/44 Primary

  dependent on machine speed {, e.g. the vehicle speed} (F16H59/46 takes precedence) · CPC title

• F16H2061/185

  Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear · CPC title

• F16H59/66

  Road conditions, e.g. slope, slippery · CPC title