Variable force electronic vehicle clutch pedal

• US 10,712,764 B2
• Filed: 07/03/2019
• Issued: 07/14/2020
• Est. Priority Date: 08/22/2016
• Status: Active Grant

• Current Assignee: CTS Corporation
• Original Assignee: CTS Corporation
• Inventors: Brown, Steven, McCafferty, Gerard, Belshaw, Rory
• Primary Examiner(s): Gokhale, Prasad V
• Application Number:
  US16/503,051
• Publication Number:
  US 20190324492A1
• Time in Patent Office: 377 Days
• CPC Class Codes: B60T 7/04 foot actuated
• CPC Class Codes: B60W 10/02 including control of driveline clutches
• CPC Class Codes: B60W 2510/0225 Clutch actuator position
• CPC Class Codes: B60W 2540/14 Clutch pedal position
• CPC Class Codes: B60W 2710/022 Clutch actuator position
• CPC Class Codes: B60W 30/1819 Propulsion control with control means using analogue circuits, relays or mechanical links
• CPC Class Codes: F16D 2500/31413 Clutch pedal position
• CPC Class Codes: G05G 1/30 Controlling members actuated by foot
• CPC Class Codes: G05G 1/44 pivoting
• CPC Class Codes: G05G 5/03 Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce arrangements for indicating the position of the controlling member G05G1/015

Abstract

An electronic vehicle clutch pedal comprising a pedal housing and a pedal arm coupled to and rotatable relative to the housing and including a distal drum rotatable relative to the pedal housing and defining a contact surface including at plurality of surface segments with different slopes. A force lever is pivotable about the pedal housing and has a first end abutted against the contact surface on the drum of the pedal arm. A compressible member has a first end abutted against a lower surface of the pedal arm and a second end abutted against a second end of the force lever. The pedal arm is rotatable about the pedal housing to cause the pivoting of the force lever relative to the pedal housing and cause the first end of the compressible member to exert a variable force against the pedal arm.

Claims

1. An electronic vehicle clutch pedal comprising:

a housing;

a pedal arm coupled to and rotatable relative to the housing in response to the application of a foot force against the pedal arm in a first vehicle clutch pedal engagement direction and defining a contact surface including a plurality of surface segments;

a force lever pivotable about the housing and abutted against the contact surface on the pedal arm; and

a compressible member having a first end abutted against the pedal arm and a second end abutted against the force lever;

whereby the application of the foot force against the pedal arm in the first vehicle clutch pedal engagement direction results in the pivoting of the force lever and the sliding of the force lever along the plurality of surface segments of the pedal arm for generating a force of increasing, then decreasing, and then increasing magnitude on the pedal arm in the first vehicle clutch pedal engagement direction of the pedal arm.

2. The electronic vehicle clutch pedal of claim 1 wherein a contact member is mounted on a first end of the force lever.

3. The electronic vehicle clutch pedal of claim 2 wherein the contact member includes a head terminating in a distal tip abutted against the contact surface of the pedal arm.

4. An electronic vehicle clutch pedal comprising:

a housing including a base and defining an interior cavity;

a pedal arm coupled to and rotatable relative to the housing in response to the application of a foot force against the pedal arm in a first vehicle clutch pedal engagement direction and including a drum extending into the cavity of the pedal housing, the drum including an exterior contact surface including a plurality of surface segments with different lengths and slopes;

a force lever pivotable about the housing and including a contact member at a first end adapted for sliding contact against the plurality of the surface segments of the contact surface of the drum; and

a compressible member having a first end abutted against an underside of the pedal arm and a second end abutted against a second end of the force lever;

whereby the pedal arm is rotatable about the pedal housing in response to the application of the foot force against the pedal arm in the first vehicle clutch pedal engagement direction to cause the pivoting of the force lever relative to the housing and the sliding contact of the contact member of the force lever against the plurality of the surface segments of different lengths and slopes of the drum of the pedal arm to cause the compressible member to exert a variable force against the pedal arm of increasing, then decreasing, and then increasing magnitude on the pedal arm in the first vehicle clutch pedal engagement direction of the pedal arm.