Parking brake apparatus and method therefor

Patent metadata

Field	Value
Publication number	US-11623619-B2
Application number	US-201916709280-A
Country	US
Kind code	B2
Filing date	Dec 10, 2019
Priority date	Dec 10, 2019
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A parking brake apparatus is provided for a vehicle having components of a parking brake system. The parking brake apparatus comprises a parking brake controller arranged to (i) obtain a first signal indicative of whether a hill start assist system is installed on the vehicle, and (ii) provide one or more control signals to be applied to components of the parking brake system to apply parking brakes when the first signal is indicative of a hill start assist system installed on the vehicle is present and a second signal indicative of the hill start assist system being activated is received.

First claim

What is claimed is:

1. A parking brake apparatus for a vehicle having components of a parking brake system, the parking brake apparatus comprising:
a parking brake controller arranged to (i) obtain a first signal indicative of whether a hill start assist system is installed on the vehicle, and (ii) provide one or more control signals to be applied to components of the parking brake system to apply parking brakes when the first signal is indicative of the hill start assist system installed on the vehicle is present and a second signal indicative of the hill start assist system being activated is received, wherein the parking brake controller is arranged to (i) execute program instructions of a time-delay based parking brake control algorithm when the first signal is indicative of the hill start assist system installed on the vehicle is present and the second signal is received, and (ii) execute program instructions of a standard parking brake control algorithm when the first signal that is indicative of the hill start assist system installed on the vehicle is absent.

2. A parking brake apparatus according to claim 1 , wherein (i) the first signal is embedded into a memory associated with the parking brake controller, and (ii) the second signal is received from a controller other than the parking brake controller.

3. A parking brake apparatus according to claim 1 , wherein the parking brake controller is arranged to assume that no hill start assist system is installed on the vehicle when the first signal is absent.

4. A parking brake apparatus according to claim 1 , wherein the parking brake controller is arranged to provide the vehicle driver with an indication that the hill start assist system is installed on the vehicle when the first signal is indicative of the hill start assist system installed on the vehicle is present and the second signal is received.

5. A parking brake apparatus according to claim 4 , wherein the indication to the vehicle driver is in the form of at least one of a visual signal, an audible signal, and a haptic signal.

6. A program storage medium readable by a computer having a memory, the medium tangibly embodying one or more programs of instructions executable by the computer to perform method steps for applying a parking brake control algorithm of a vehicle having components of a parking brake system, the method comprising the step of:
applying a first parking brake control algorithm when a select one of a hill start assist system, electric powertrain, automated transmission, and advanced driver assistance system is installed on the vehicle and a second signal indicative of the hill start assist system being activated is received; and
applying a second parking brake control algorithm that is different from the first parking brake control algorithm when the select one of the hill start assist system, electric powertrain, automated transmission, and advanced driver assistance system is not installed on the vehicle.

7. A program storage medium according to claim 6 , wherein (i) the first parking brake control algorithm comprises a first time-delay based parking brake control algorithm, and (ii) the second parking brake control algorithm comprises a second time-delay based parking brake control algorithm.

8. A program storage medium according to claim 6 , wherein the system installed on the vehicle comprises the hill start assist system.

Assignees

• Bendix Commercial Vehicle Systems Llc

Inventors

• Hutchins Christopher H
• Zula Daniel P

Classifications

• B60T7/12 Primary

  for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} · CPC title

• B60T13/74

  with electrical assistance or drive · CPC title

• B60T17/22 Primary

  Devices for monitoring or checking brake systems; Signal devices · CPC title

• B60T2201/06

  Hill holder; Start aid systems on inclined road · CPC title

• B60T7/122 Primary

  for locking of reverse movement · CPC title