Control device and method for improving the measuring accuracy of an on-board vehicle axle load measurement system
AssigneeZF CV Systems Global GmbH
InventorArne Ehlers
Life of this patent
Estimating the term…
Abstract
A control device is for a vehicle and a method is for improving the measuring accuracy of an on-board vehicle axle load measurement system during a loading or unloading process and/or during the levelling of a stationary vehicle, wherein a wheel brake is assigned to each vehicle wheel, and wherein each wheel brake is actuatable via an on-board vehicle electronic braking system. The control device is configured to control the electronic braking system such that the latter, by the repeated engagement and/or release of at least one or more of the wheel brakes, reduces mechanical stresses within the vehicle body which impair the accuracy of the axle load measurement system. A method is for operating this control device.
Claims15
A control device for a vehicle having a plurality of vehicle wheels, the device being for improving the measuring accuracy of an on-board vehicle axle load measurement system during at least one of loading, unloading, and levelling of a stationary vehicle, wherein a wheel brake is assigned to each vehicle wheel, and wherein each wheel brake is actuatable via an on-board vehicle electronic braking system, the control device comprising:
- a non-transitory computer readable storage medium having program code stored thereon, wherein said program code is for controlling the electronic braking system such that the electronic braking system reduces mechanical stresses within a vehicle body which impair the accuracy of the axle load measurement system;
- and,
- said program code, when executed by a processor, being configured to:
- a) engage all wheel brakes prior to a commencement of the at least one of loading, unloading, and leveling of the stationary vehicle;
- b) on the stationary vehicle, release a maximum number of wheel brakes such that any independent roll-away of the vehicle will be prevented via the remaining engaged wheel brakes;
- c) finish a predefined time interval, which is appropriate for a reduction of mechanical stresses within at least one of a vehicle body and running gear which impair the accuracy of the axle load measurement system;
- d) engage at least one or more of previously released wheel brakes, wherein said at least one or more of previously released wheel brakes is independently capable of ensuring roll-away protection;
- e) release one or more of the wheel brakes which have been engaged over a longer period;
- f) measure the axle load on at least one vehicle axle;
- and
- g) repeat c) to f), until the at least one of loading, unloading, and levelling of the stationary vehicle is terminated.
A control device for a vehicle having a plurality of vehicle wheels, the device being for improving the measuring accuracy of an on-board vehicle axle load measurement system during at least one of loading, unloading, and levelling of a stationary vehicle, wherein a wheel brake is assigned to each vehicle wheel, and wherein each wheel brake is actuatable via an on-board vehicle electronic braking system, the control device comprising:
- a hardware circuit for controlling the electronic braking system such that the electronic braking system reduces mechanical stresses within a vehicle body which impair the accuracy of the axle load measurement system;
- said hardware circuit being configured to:
- a) engage all wheel brakes prior to a commencement of the at least one of loading, unloading, and leveling of the stationary vehicle;
- b) on the stationary vehicle, release a maximum number of wheel brakes such that any independent roll-away of the vehicle will be prevented via the remaining engaged wheel brakes;
- c) finish a predefined time interval, which is appropriate for a reduction of mechanical stresses within at least one of a vehicle body and running gear which impair the accuracy of the axle load measurement system;
- d) engage at least one or more of previously released wheel brakes, wherein said at least one or more of previously released wheel brakes is independently capable of ensuring roll-away protection;
- e) release one or more of the wheel brakes which have been engaged over a longer period;
- f) measure the axle load on at least one vehicle axle;
- and
- g) repeat c) to f), until the at least one of loading, unloading, and levelling of the stationary vehicle is terminated.
A method for improving measuring accuracy of an on-board vehicle axle load measurement system of a vehicle during at least one of a loading process, an unloading process and during a levelling of a stationary vehicle, wherein a wheel brake is assigned to each of a plurality of vehicle wheels, and wherein each wheel brake is actuatable via an on-board vehicle electronic braking system, the method comprising:
- a) engaging all wheel brakes prior to a commencement of the at least one of the loading process, the unloading process, and the leveling of the stationary vehicle;
- b) on the stationary vehicle, releasing a maximum number of wheel brakes such that any independent roll-away of the vehicle will be prevented via the remaining engaged wheel brakes;
- c) finishing of a predefined time interval, which is appropriate for a reduction of mechanical stresses within at least one of a vehicle body and running gear which impair the accuracy of the axle load measurement system;
- d) engaging of at least one or more of previously released wheel brakes, wherein said at least one or more of previously released wheel brakes is independently capable of ensuring roll-away protection;
- e) releasing one or more of the wheel brakes which have been engaged over a longer period;
- f) measuring of the axle load on at least one vehicle axle;
- and
- g) repetition of steps c) to f), until the at least one of the loading process, the unloading process, and the levelling of the stationary vehicle is terminated.
Dependencies are inferred from the claim text.