Electrical traction drive for a vehicle
AssigneeZiehl-Abegg Automotive GmbH & Co. KG
InventorsAlexander Haag, Sascha Klett, Ralf Arnold
Life of this patent
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Abstract
In an electrical traction drive for a vehicle comprising at least two individual wheel drives that are to be controlled independently of each other, the drives are able to be operated redundantly in order for an emergency operating function to be implemented.
Claims21
An electrical traction drive for a vehicle comprising at least two individual wheel drives which are controlled independently from each other,
- wherein said electrical traction drive includes two individually driven wheels on an axle and a shared energy source for the two individually driven wheels on the axle,
- wherein, to perform an emergency operating function, the individual wheel drives are configured to function redundantly,
- wherein, to avoid a dead vehicle, said emergency operating function provides a fail-safe in such a way that at least one of the individual wheel drives is able to operate if both individual wheel drives are not defective at the same time,
- wherein the individual wheel drives each include a subsystem that includes at least one of a control linkage and a performance linkage, and
- wherein each subsystem further includes a separate data bus interface in a central axial drive control device for controlling the individual wheel drives.
An electrical traction drive for a vehicle comprising at least two individual wheel drives which are controlled independently from each other, wherein, to perform an emergency operating function, the individual wheel drives are configured to function redundantly, the individual wheel drives each have a subsystem that includes a least one of a control linkage and a performance linkage, wherein the subsystem is configured to receive energy from an emergency energy source which provides energy necessary for the performance component of a particular converter, and the emergency energy source is a power supply device or a voltage converter, wherein each subsystem further includes a separate data bus interface in a central axial drive control device for controlling the individual wheel drives.
An electrical traction drive for a vehicle comprising
- at least two individual wheel drives which are controlled independently from each other,
- wherein, to perform an emergency operating function, the individual wheel drives are configured to function redundantly,
- wherein, to avoid a dead vehicle, said emergency operating function provides a fail-safe in such a way that at least one of the individual wheel drives is able to operate if both individual wheel drives are not defective at the same time, and
- the emergency operating function is implemented mainly or completely by software and is configured to be retrofitted in existing drives.
An electrical traction drive for a vehicle comprising at least two individual wheel drives which are controlled independently from each other,
- wherein said electrical traction drive includes two individually driven wheels on an axle and a shared energy source for the two individually driven wheels on the axle,
- wherein, to perform an emergency operating function, the individual wheel drives are configured to function redundantly,
- wherein the individual wheel drives each include a subsystem that includes at least one of a control linkage and a performance linkage,
- wherein each subsystem further includes a separate data bus interface in a central axial drive control device for controlling the individual wheel drives, and
- wherein a low-voltage signal actuating the emergency operating function is run directly to a converter of at least one of the individual wheel drives via a control line or via the central axial drive control device, wherein the same converter is actively supplied with energy.
Dependencies are inferred from the claim text.