Warning system generating warning of disengagement of parking brake of motor vehicle
AssigneeScania CV AB
InventorsSten Lundgren, Ola Bergqvist
Life of this patent
Estimating the term…
Abstract
A warning system and a method for alerting a driver of a vehicle that the parking brake of the vehicle is not engaged by generating a warning when the following conditions are simultaneously fulfilled: the ignition of the vehicle is on, the driver access door of the vehicle cabin is open, no throttle lever, or clutch lever or brake lever of the vehicle is activated, the gear shift lever of the vehicle is in the neutral position, and the parking brake is not engaged, and not when—the pressure of a pneumatic circuit associated with the parking brake is below a threshold,—the vehicle speed exceeds a threshold.
Claims19
A warning system for a motor vehicle provided with a parking brake, wherein the system comprises a warning device operable to determine occurrence of each of the following conditions and to generate a warning signal, when the following conditions, are simultaneously fulfilled:
- an ignition of the vehicle is on,
- a driver access door of the vehicle cabin is open,
- no throttle lever, clutch lever or brake lever of the vehicle is activated,
- a gear shift lever of the vehicle is in a neutral position, and
- a parking brake is not engaged.
A method for alerting a driver of a vehicle that a parking brake of the vehicle is not engaged comprising generating a warning when the following conditions are simultaneously fulfilled:
- an ignition of the vehicle is on,
- a driver access door of a vehicle cabin is open,
- no throttle lever, clutch lever or brake lever of the vehicle is activated,
- a gear shift lever of the vehicle is in the neutral position, and
- the parking brake is not engaged.
A computer program loadable directly into an internal memory of a computer, the computer program being stored on a non-transitory computer-readable medium, wherein that computer program comprises computer program code for causing the computer:
- to establish whether or not an ignition of a vehicle is on,
- to establish whether or not a driver access door of the vehicle cabin is open,
- to establish whether or not a throttle lever, a clutch lever or a brake lever of the vehicle is activated,
- to establish whether or not a gear shift lever of the vehicle is in a neutral position,
- to establish whether or not a parking brake of the vehicle is engaged, and
- to initiate a generation of a warning, to alert a driver of the vehicle when the following conditions are simultaneously fulfilled:
- the ignition of the vehicle is on,
- the driver access door of the vehicle cabin is open,
- no throttle lever, clutch lever or brake lever of the vehicle is activated,
- the gear shift lever of the vehicle is in the neutral position, and
- the parking brake is not engaged.
Dependencies are inferred from the claim text.