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Dormancy and awakening control method and device

A control method and control device technology, applied in the direction of program control, computer control, general control system, etc., can solve the problem of large static power consumption of the whole vehicle, and achieve the effect of solving the large static power consumption of the whole vehicle

Inactive Publication Date: 2020-09-04
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the above technical problems, the present invention provides a sleep and wake-up control method and device, which solves the problem that the current vehicle sleep and wake-up methods cause large static power consumption of the vehicle

Method used

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  • Dormancy and awakening control method and device
  • Dormancy and awakening control method and device
  • Dormancy and awakening control method and device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] Such as figure 1 As shown, this embodiment provides a dormancy control method, including:

[0048] Step 11, when the ignition switch is in the off state, obtain the sleep request sent by each electronic control unit ECU on the first network segment in the vehicle control network system;

[0049] Step 12. If at least one ECU on the first network segment has an associated ECU with functional interaction on the second network segment, respond to the sleep request, and determine whether the associated ECU sends a sleep request;

[0050] Step 13: If the associated ECU sends a sleep request, control the first network segment to sleep.

[0051] Specifically, the sleep control method also includes after step 12:

[0052] Step 14, if at least one of the associated ECUs does not send a dormancy request, then controlling the at least one network segment to keep in an awake state.

[0053] Specifically, the sleep control method also includes after step 11:

[0054] Step 15. If ...

example 1

[0059] Example 1, such as figure 2 As shown, there are three networks, Network1, Network2, and Network3, and a gateway GW. Among them, Network1 includes three electronic control units ECU1, ECU2 and ECU3, Network2 includes three electronic control units ECU4, ECU5 and ECU6, and Network3 includes three electronic control units ECU7, ECU8 and ECU9. In addition, ECU1 and ECU4 have functional interaction, ECU2 and ECU8 have functional interaction, ECU1 and ECU2 have local wake-up sources (that is, wake-up network conditions), and other ECUs only have network wake-up. The GW participates in sleep and wake-up of each network segment at the same time, and routes Network1, Network2 and Network3 packets to other networks respectively. The network architecture of Example 1 implements sleep and wake-up by using direct network management packets.

[0060] In the first example, when the ignition switch of the vehicle is off, if ECU2, ECU3, ECU5, ECU6, ECU7, ECU8, and ECU9 have no functi...

no. 2 example

[0062] Such as image 3 As shown, this embodiment provides a wake-up control method, including:

[0063] Step 31. When the vehicle is dormant and it is detected that the first electronic control unit ECU on the first network segment in the vehicle control network system is awakened by a wake-up event, determine whether the first ECU has a function interaction association on the second network segment ECU;

[0064] Step 32: If the associated ECU exists, wake up the associated ECU and the second network segment.

[0065] Preferably, the wake-up control method further includes:

[0066] When the vehicle is dormant and it is detected that the first ECU on the first network segment is awakened by a wake-up event, if there is no associated ECU on the third network segment that has functional interaction with the first ECU, then control the The third network segment and the ECU on the third network segment remain in a dormant state.

[0067] In this embodiment, the wake-up contro...

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Abstract

The invention discloses a dormancy and awakening control method and device and an automobile. The dormancy control method comprises the steps: when an ignition switch is in a closed state, obtaining adormancy request sent by each electronic control unit (ECU) on a first network segment in an automobile control network system; if at least one ECU on the first network segment has associated ECUs with function interaction on a second network segment, responding to the dormancy request, and judging whether the associated ECUs send the dormancy request or not; and if the associated ECUs send the dormancy request, controlling the first network segment to sleep. According to the embodiment of the invention, the dormancy and awakening states of each network segment are independently controlled according to the dormancy requirements of different network segments, the distributed dormancy and awakening of the whole vehicle are realized, and the static power consumption of the whole vehicle canbe effectively reduced.

Description

technical field [0001] The invention relates to the technical field of sleep and wake-up of vehicles, in particular to a control method and device for sleep and wake-up. Background technique [0002] At present, there are more and more vehicle electronic products, and their functions are becoming more and more complex. Some of these functions need to work even when KL15OFF (ignition switch is off), so the network architecture design requires multiple networks to support. The current network architecture realizes the interaction of multiple networks through the gateway. How to ensure that so many networks realize sleep and wake-up is a problem that needs to be solved in the design of the network architecture. At present, the following methods are mostly used: [0003] 1. Each network node judges its own state and sends a sleep request after meeting the sleep conditions; [0004] 2. When the vehicle is in a dormant state, a function is activated to wake up the vehicle. [00...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/042
Inventor 孙江辉谢明维徐志峰张兆龙
Owner BEIJING ELECTRIC VEHICLE
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