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Method for operating a steering control device for actuating an electric steering system, and steering control device

A steering device and steering control technology, applied in the field of vehicles, can solve problems such as the inability to ensure the availability of secondary computing units, and achieve the effect of reducing duration and fast transition

Active Publication Date: 2021-11-09
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, especially in controlled systems there is the problem that with the system mentioned at the outset, the availability of the secondary computing unit or of the backup level at the time of a failure cannot be ensured because the secondary computing unit is not connected to the closure in the primary regulation loop and thus remain in a fixed operating point during normal operation

Method used

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  • Method for operating a steering control device for actuating an electric steering system, and steering control device
  • Method for operating a steering control device for actuating an electric steering system, and steering control device
  • Method for operating a steering control device for actuating an electric steering system, and steering control device

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Embodiment Construction

[0025] figure 1 In a simplified illustration, a vehicle 28 , which is designed as a passenger car by way of example, has a plurality of wheels (not shown) and a steering system 26 . In this case, vehicle 28 includes, by way of example, at least one autonomous, in the present case in particular highly automated, driving mode (at least SAE level 3). In principle, however, it is also conceivable that the vehicle may only have a conventional and / or manual driving mode and / or a partially autonomous driving mode.

[0026] Steering system 26 includes electric steering device 12 . The electric steering device 12 has an operative connection to the wheels and is designed to influence the direction of travel of the vehicle 28 . To this end, the electric steering device 12 includes, inter alia, a real and / or physical steering actuation mechanism 18 (see figure 2 ). Steering actuation mechanism 18 is designed as an actuation mechanism known per se and can include, for example, a wheel...

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Abstract

A method for operating a steering control device (10) for actuating an electric steering system (12) is proposed, wherein in at least one fault operating state in which a fault and / or a failure of the primary computing unit (14) occurs, the primary computing unit (14) is replaced by a secondary computing unit (16), and a steering actuator system (18) of the electric steering system (12) is actuated in the manner of a closed-loop control system by means of the secondary computing unit (16), and in at least one normal operating state in which, in particular, the primary computing unit (14) is provided for actuating the steering actuator system (18), a simulation unit (20) is actuated by means of the secondary computing unit (16), said simulation unit (20) at least partially simulating the steering actuator system (18), at least temporarily in the manner of a closed-loop control system.

Description

technical field [0001] The invention relates to a method for operating a steering control device for actuating an electric steering device and to a steering control device. Furthermore, the invention relates to a steering system with such a steering control device and to a vehicle with such a steering system. Background technique [0002] Conventional steering systems with hydraulic steering assistance or electrical steering assistance in the form of power steering are known from the prior art, wherein at least in the latter case an electric motor is used to generate the steering assistance. As a safety concept, for example, in the event of a failure of electrical and / or electronic components of the steering system, a mechanical backup level (Rückfallebene) can be used, which is designed to enable steering and ensure controllability even in the event of failure of the steering assistance and safe operation. However, a sudden deactivation of the steering assistance leads to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/0484B62D5/0493
Inventor J·格朗巴赫N·斯皮思M·福克斯T·尼罗比施M·里格尔S·斯特劳布S·塞尔扎姆
Owner ROBERT BOSCH GMBH
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