Pedal System for the Generation of a Force Path Having Hysteresis

• US 20150277479A1
• Filed: 11/04/2013
• Published: 10/01/2015
• Est. Priority Date: 11/23/2012
• Status: Active Grant

• Current Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Original Assignee: Hella KGaA Hueck & Company
• Inventors: Viethen, Claus, Austermeier, Werner
• Granted Patent: US 9,471,085 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 2026/023 with electrical means to generate counter force or torque
• CPC Class Codes: B60K 26/021 with means for providing feel, e.g. by changing pedal force characteristics
• 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
• CPC Class Codes: Y10T 74/20888 Pedals

Abstract

A pedal system for the generation of a force path having hysteresis when a pedal is actuated. The system includes a pedal that is supported such that it can pivot between at least a first position and a second position. The pedal has a sliding element having a sliding surface, as well as a bearing device having at least one friction surface for supporting the sliding surface of the sliding element. The bearing device is supported such that it can pivot about a bearing axle. The friction surface and the sliding surface are in contact with one another in a first contact section when the pedal is in the first position, and are in contact with one another in a second contact section when the pedal is in the second position. The first contact section and the second contact section have different lever arms to the bearing axle.

Claims

1. A pedal system for the generation of a force path having hysteresis when a pedal is actuated, said pedal system comprising:

a pedal supported such that it can pivot between at least a first position and a second position, said pedal including;

a sliding element with a sliding surface, a bearing device having at least one friction surface for supporting the sliding surface of the sliding element,

wherein the bearing device is supported such that it can pivot about a bearing axle,

and the friction surface and the sliding surface are in contact with one another in a first contact section when the pedal is in the first position, and are in contact with one another in a second contact section when the pedal is in the second position,

wherein the first contact section and the second contact section have different lever arms to the bearing axle.

2. The pedal system according to claim 1, wherein the contact sections are formed by at least one of:

raised sections of the sliding surface and the friction surface.

3. The pedal system according to claim 1, wherein at least one of the friction surface and the sliding surface extends, at least in sections, along a curve having a constant curvature radius.

4. The pedal system according to claim 1, wherein the contact sections are formed as inclined planes along the course of the movement of the sliding surface on the friction surface, such that they are at least one of substantially continuously in contact and not in contact over the course of the movement from the first position of the pedal to the second position of the pedal.

5. The pedal system according to claim 1, wherein the contact sections are formed as contact surfaces on at least one of the sliding surface and the friction surface (42).

6. The pedal system according to claim 1, wherein the sliding element is formed as a separate component, and is attached to the pedal.

7. The pedal system according to claim 1, wherein the bearing device has at least two friction surfaces and the pedal has at least two sliding elements having sliding surfaces, wherein the pairings of the sliding surfaces with the friction surfaces are axially spaced apart from one another in the direction of the bearing axle.

10. A method for generating a force path having hysteresis when a pedal is actuated utilizing the pedal system of claim 1,

wherein when the pedal is moved from the first position to the second position, the normal force of a frictional pairing between the pedal and the friction surface is altered by means of a modification of lever ratios.

8. A pedal system for the generation of a force path having hysteresis when a pedal is actuated, said pedal system comprising

a pedal supported such that it can pivot between at least a first position and a second position, which pedal including:

a sliding element with a sliding surface, and

a bearing device with at least one friction surface for supporting the sliding surface of the sliding element,

wherein a frame is provided, in which the bearing device is supported such that it can pivot about a bearing axle,

wherein the frame has a frame friction surface and the sliding element has a frame sliding surface, and

wherein the frame friction surface and the frame sliding surface are in contact with one another in a first contact section when the pedal is in the first position, and are in contact with one another in a second contact section when the pedal is in the second position, wherein the first contact section and the second contact section have different lever arms to the bearing axle.

9. (canceled)