An instrument wake-up control device
An instrument and instrument bus technology, which is applied in the field of instrument wake-up control devices, can solve problems such as inability to wake up, inability to know the charging status of the vehicle from the instrument, and low-voltage power failure when parking, and achieve the effect of improving safety
Active Publication Date: 2017-10-17
CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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Problems solved by technology
If the vehicle is charged at this time, the driver cannot know the charging status of the vehicle from the instrument
[0005] Therefore, there is an urgent need for a meter wake-up control device that can solve the problem of parking and breaking low-voltage power, and charging with an external DC power supply that cannot wake up the meter screen.
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] In view of the problem that the existing plug-in hybrid electric vehicle stops and cuts off the low-voltage power supply, and the external DC power supply can not wake up the meter screen, the embodiment of the present invention provides a meter wake-up control device, which can wake up the meter in the charging mode and non-charging mode . In addition to waking up the instrument when the key is ON in the non-charging mode, it can also wake up the instrument and display the charging status in real time in the charging mode, that is, when the vehicle is in a non-driving state and the external DC charging device is connected.
[0029] figure 1 It is a schematic structural diagram of the instrument wake-up control device of this embodiment. The instrument wa...
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The invention discloses an instrument wake-up control device, comprising: a battery management system connected to the instrument bus module for sending battery information to the instrument bus module; The external charging device wakes up the battery management system; the instrument bus module is connected to the charging interface to receive a first control signal from the external charging device in the charging state, and the first control signal is used to wake up the instrument bus module; wherein, the The instrument bus module wakes up the instrument in the charging state, and sends the battery information to the instrument for display. The invention can provide a meter wake-up method in the charging mode for the plug-in hybrid electric vehicle. In the charging mode, the external charging power supply is used to provide an auxiliary low-voltage power supply for the vehicle, which wakes up the battery management system and the instrument, so that the instrument can display the charging status in real time during the charging phase.
Description
technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to an instrument wake-up control device, in particular to an instrument wake-up control device for a plug-in hybrid electric vehicle. Background technique [0002] A hybrid electric vehicle (Hybrid Electric Vehicle, HEV) adds energy storage devices such as motors and chemical batteries to the drive system of traditional internal combustion engine vehicles. Through reasonable matching and optimal control, it combines the advantages of traditional fuel vehicles and pure electric vehicles. . The plug-in hybrid electric vehicle (PHEV) derived in recent years uses a large-capacity power battery, which can be charged by an external power grid, which increases the mileage of the pure electric mode, can effectively improve the use of electric energy, and reduce the consumption of fuel. But, also there are various drawbacks in its charging process. [0003] In the prior a...
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IPC IPC(8): H02J7/00
Inventor 汪伟汪帆张群政谭志红王婉霞
Owner CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD