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Vehicle sleeps method and system

A vehicle and sleep state technology, which is applied in the field of network management, can solve the problems of vehicle power consumption and other issues, achieve the effect of preventing frequent sleep or being awakened, and ensuring the safety of the vehicle

Active Publication Date: 2017-02-01
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The present invention provides a vehicle dormancy method and system, aiming to solve the problem in the prior art that the entire CAN network will not enter the dormant state before all functions of the BCM are turned off, which will affect the power consumption of the vehicle

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  • Vehicle sleeps method and system
  • Vehicle sleeps method and system

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Embodiment Construction

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0045] The vehicle dormancy method and system provided by the present invention redesign the dormancy strategy of the body controller so that after the vehicle is powered off, if the current state of each non-single wake-up source satisfies the local dormancy condition, the body controller will send a permission on the CAN bus. For the sleep message of other controllers, if other controllers meet the sleep conditions, the CAN bus and all other controllers will enter the sleep state to reduce the loss caused by the static current of networ...

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Abstract

The present invention provides a vehicle sleep method and system. The method comprises the following the steps that: the non-single wake-up sources of a vehicle are determined in advance; and when the state of each non-single wake-up source satisfies local sleep conditions, a vehicle body controller transmits a message on a CAN bus, wherein the message indicates that the other controllers are allowed to sleep; the CAN bus and the other controllers can enter sleep states under a premise that the vehicle body controller does not affect the work of the other controllers, and therefore, energy consumption can be reduced; and the vehicle body controller judges the vehicle body controller itself satisfies sleep conditions, and the CAN bus has enters a sleep state, the vehicle body controller enters a sleep state, and therefore, the safety of the vehicle can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of network management, in particular to a vehicle dormancy method and system. Background technique [0002] With the increasing intelligence of automobiles, there are more and more electronic control units (ECUs) in automobiles, with more and more complex functions, and all of them have CAN network communication functions. At present, the German automotive electronics open systems and application interface standard (open systems and the corresponding interfaces for automotive electronics, OSEK) network management strategy is widely used in the market to realize vehicle sleep. For example, ECUs connected in the same network segment are often connected through Common dormancy mode to achieve the purpose of vehicle dormancy. [0003] Body Controller BCM is a commonly used ECU as a node of CAN network. During the dormancy process of the vehicle, since the BCM involves the functional control of the vehicle ligh...

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 李越叶圣伟吴震云
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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