A vehicle braking system includes a service brake pedal and a sensing device configured to monitor a position of the service brake pedal. A processing device is configured to control an amount of braking force provided by the vehicle braking system as a function of the position of the service brake
A vehicle braking system includes a service brake pedal and a sensing device configured to monitor a position of the service brake pedal. A processing device is configured to control an amount of braking force provided by the vehicle braking system as a function of the position of the service brake pedal. The braking system further includes a return spring operatively coupled to the service brake pedal and configured to provide a substantially linear pedal effort feedback during an initial range of motion of the service brake pedal. Additionally, a damping device that operates in compression as the service brake pedal is depressed is configured to provide a substantially non-linear pedal effort feedback during a subsequent range of motion of the service brake pedal.
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1. A vehicle braking system, comprising: a service brake pedal;a sensing device configured to monitor a position of the service brake pedal;a processing device configured to control an amount of braking force provided by the vehicle braking system as a function of the position of the service brake p
1. A vehicle braking system, comprising: a service brake pedal;a sensing device configured to monitor a position of the service brake pedal;a processing device configured to control an amount of braking force provided by the vehicle braking system as a function of the position of the service brake pedal;a return spring operatively coupled to the service brake pedal and configured to provide a substantially linear pedal effort feedback during an initial range of motion of the service brake pedal;a damping device that operates in compression as the service brake pedal is depressed, wherein the damping device is configured to provide a substantially non-linear pedal effort feedback during a subsequent range of motion of the service brake pedal; anda sensor arm operatively coupled to the service brake pedal and configured to be displaced during both the initial range of motion of the service brake pedal and the subsequent range of motion of the service brake pedal, and wherein the sensing device is configured to monitor the position of the service brake pedal based on the displacement of the sensor arm. 2. The vehicle braking system of claim 1, wherein the damping device comprises: a containment structure; andan elastically deformable body at least partially confined within the containment structure, wherein the elastically deformable body is configured to deform in response to the confinement within the containment structure, and wherein the deformation of the elastically deformable body results in the substantially non-linear pedal effort feedback provided by the damping device. 3. The vehicle braking system of claim 2, wherein the containment structure is cylindrical in shape, wherein an annular space is formed between the elastically deformable body and an inner surface of the containment structure, and wherein the elastically deformable body is configured to radially deform into the annular space during the initial range of motion of the service brake pedal. 4. The vehicle braking system of claim 3, wherein the annular space is completely occupied by the elastically deformable body during at least a portion of the subsequent range of motion of the service brake pedal, such that the elastically deformable body contacts the inner surface of the containment structure. 5. The vehicle braking system of claim 3, wherein the containment structure comprises a first surface against which the elastically deformable body is compressed, and wherein the elastically deformable body is attached to the first surface by a retention device. 6. The vehicle braking system of claim 5, wherein the retention device comprises a first plate located on a first face of the elastically deformable body and a second plate located on a second face of the elastically deformable body opposite the first face, and wherein the second plate is configured to evenly distribute a compressive force through the elastically deformable body. 7. The vehicle braking system of claim 6, wherein the second plate is operatively coupled to the service brake pedal via a clevis assembly. 8. The vehicle braking system of claim 7, wherein the clevis assembly is operatively coupled to both the second plate and the return spring. 9. The vehicle braking system of claim 1, wherein the damping device comprises an elastically deformable body that begins to deform during a transition period between the initial range of motion and the subsequent range of motion of the service brake pedal, and wherein the deformation of the elastically deformable body results in the substantially non-linear pedal effort feedback provided by the damping device during the subsequent range of motion of the service brake pedal. 10. The vehicle braking system of claim 9, wherein the elastically deformable body comprises a bumper made of rubber or neoprene. 11. The vehicle braking system of claim 9, wherein the damping device further comprises a second spring, wherein the second spring is a compression spring, wherein the elastically deformable body is attached to the compression spring, and wherein the substantially non-linear pedal effort feedback is provided by the damping device during the subsequent range of motion of the service brake pedal as the elastically deformable body is being deformed and the second spring is being compressed. 12. The vehicle braking system of claim 11, wherein the second spring comprises a helical spring formed with a first end having a smaller radius of curvature than a second end of the helical spring, and wherein the elastically deformable body is attached to a first end of the helical spring. 13. The vehicle braking system of claim 9, further comprising a pedal arm attached to the service brake pedal, wherein the pedal arm is physically separated from the elastically deformable body during the initial range of motion of the service brake pedal, and wherein the pedal arm rotates to contact the elastically deformable body at the beginning of the transition period. 14. The vehicle braking system of claim 1, wherein the sensing device is configured to generate a voltage signal that varies as a function of the displacement of the sensor arm, and wherein the processing device controls the amount of braking force provided by the vehicle braking system in response to receiving the voltage signal. 15. The vehicle braking system of claim 14, wherein the sensing device comprises a dual-channel hall effect sensor assembly that is configured to generate two voltage signals, and wherein the processing device is configured to: compare the two voltage signals to determine if there is a failure in the sensing device; andin response to detecting a failure, disabling the vehicle braking system and actuating a parking brake, wherein the parking brake is otherwise not actuated in response to a monitored position of the service brake pedal. 16. A method of actuating an electronic braking system, comprising: monitoring, with a sensing device, a brake pedal position associated with a service brake pedal, wherein the sensing device comprises a dual-channel Hall-effect sensor assembly that is configured to generate two voltage signals;generating a brake signal as a function of the brake pedal position;transmitting the brake signal, wherein an amount of braking force applied by the electronic braking system is determined based, as least in part, on the brake signal;generating a first range of pedal effort feedback in response to the service brake pedal being moved through an initial range of pedal stroke, wherein the first range of pedal effort feedback is generated as a substantially linear function of the brake pedal position within the initial range of pedal stroke; and generating a second range of pedal effort feedback in response to the service brake pedal being moved through a subsequent range of pedal stroke, wherein the second range of pedal effort feedback is generated as a substantially non-linear function of the brake pedal position within the subsequent range of pedal stroke. 17. The method of claim 16, wherein generating the first range of pedal effort feedback comprises placing a return spring in tension, wherein the return spring is operatively coupled to the service brake pedal via a brake pedal linkage, and wherein generating the second range of pedal effort feedback comprises placing a damping device in compression, wherein the damping device comprises an elastically deformable body made of rubber or neoprene. 18. The method of claim 17, wherein the elastically deformable body is placed in compression within a cylindrical container, and wherein the second range of pedal effort feedback is generated as a result of the elastically deformable body being compressed within the cylindrical container.
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