Variable force electronic vehicle clutch pedal

• US 10,359,802 B2
• Filed: 08/20/2017
• Issued: 07/23/2019
• 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:
  US15/681,401
• Publication Number:
  US 20180052483A1
• Time in Patent Office: 702 Days
• Field of Search: 74512, 74560, 74561
• 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 including a distal drum rotatable relative to the housing and defining a contact surface including a plurality of surface segments with different slopes including a first rounded segment, a second rounded segment spaced from the first rounded segment, and an elongate straight surface segment therebetween;

a force lever pivotable about the housing and having a contact member abutted against the contact surface on the drum of 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 contact member of the force lever along and against the first, second, and third surface segments of the drum 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 the 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 drum of the pedal arm.

4. An electronic vehicle clutch pedal comprising:

a housing;

a pedal arm coupled to and rotatable relative to the housing and including a distal drum rotatable relative to the housing and defining a contact surface including a plurality of surface segments with different slopes;

a force lever pivotable about the housing and having a first lever end abutted against the contact surface on the drum of the pedal arm; and

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

whereby the rotation of the pedal arm results in the pivoting of the force lever and the exertion of a force of varying magnitude on the pedal arm by the compressible member;

a contact member mounted on the first lever end of the force lever and abutted against the contact surface of the drum of the pedal arm, the contact member including a head terminating in a distal tip abutted against the contact surface of the drum of the pedal arm; and

a receptacle defined in the first lever end of the force lever, the contact member being located and mounted in the receptacle defined in the first lever end of the force lever.

5. An electronic vehicle clutch pedal comprising:

a housing including a base and a pair of spaced apart side walls together 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 distal drum extending into the cavity of the pedal housing and between the spaced apart side walls, the drum including a nose having 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 on the nose 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 nose 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.

6. An electronic vehicle clutch pedal comprising:

a housing including a base having a pair of spaced apart ledges defining respective spaced apart and co-linear slots;

a force lever including a pair of spaced apart ears, the force lever being seated on the base of the housing in a relationship with the respective pair of ears seated in the respective slots defined in the respective ledges for mounting the force lever for pivoting movement about the base of the housing;

a contact member mounted at one end of the force lever and including a head including a pair of angled surfaces terminating in a distal tip;

a pedal arm extending into and rotatable about the housing and including a nose in abutting contact with the distal tip of the head of the contact member mounted at the one end of the force lever;

a compressible member including opposed ends abutted against the pedal arm and the force lever respectively;

whereby the rotation of the pedal arm relative to the housing results in the rotation of the nose of the pedal arm which results in the movement of the force lever which results in the pivoting of the force lever which results in the compression of the compressible member and the application of a force of varying magnitude on the pedal arm.

7. The electronic vehicle clutch pedal of claim 6 wherein the contact member includes a neck extending into a receptable defined in the one end of the force lever for mounting the head to the force lever.

8. The electronic vehicle clutch pedal of claim 6 wherein the nose includes an exterior surface having a plurality of surface segments of varying slopes and length for generating the force of varying magnitude on the pedal arm.

9. The electronic vehicle clutch pedal of claim 8 wherein the exterior surface of the nose includes first and second spaced apart rounded surface segments and a straight surface segment therebetween.