Water surface height detection alarming device for electric vehicle and control method
A technology of water surface height and alarm device, which is applied in electric vehicles, electrical devices, signal devices, etc., can solve problems such as water ingress of high-voltage parts of the chassis, wrong forward movement, and lack of clarity, so as to save hardware costs and avoid false alarms , the effect of preventing vehicle damage and personal hazards
Pending Publication Date: 2017-09-01
ZHONGTONG BUS HLDG
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Problems solved by technology
[0010] When an electric vehicle encounters water on the road, it is easy to cause water ingress to the high-voltage components of the chassis due to the inaccurate determination of the height of the water accumulation; at the same time, the wading alarm device in the prior art can prevent the cab from entering water, but the signal is single when alarming, which is not enough It is clear and cannot be forced to stop the wrong action of the personnel
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[0037] Below in conjunction with accompanying drawing and embodiment, the embodiment of the present invention is described in detail as follows:
[0038] An electric vehicle water surface height detection and alarm device, as attached figure 2 As shown, it includes: ultrasonic water level sensor 101, vehicle controller 103, total positive relay 105, instrument 104;
[0039] The ultrasonic water level sensor 101 is electrically connected to the vehicle controller 103 with the CAN bus, the vehicle controller 103 is connected to the meter 104 with the CAN bus, and the vehicle controller 103 is electrically connected to the total positive relay 105, and the vehicle controller 103 has corresponding calculation program and control circuit;
[0040] The ultrasonic water level sensor 101 is used to detect the distance from the water surface of road ponding to the chassis of the car and sends the measured signal to the vehicle controller 103; the vehicle controller 103 receives the m...
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The invention relates to a water surface height detection alarming device for an electric vehicle and a control method. The water surface height detection alarming device comprises an ultrasonic water level sensor, a vehicle controller, a total positive relay and an instrument. The ultrasonic water level sensor is electrically connected with the vehicle controller through a CAN bus; the vehicle controller is connected with the total positive relay and the instrument through CAN buses; the ultrasonic water level sensor is used for detecting the distance between the water surface of accumulated water on a road and a chassis; the vehicle controller sends different warning prompts to the instrument according to different calculation results and sends a control signal of a disconnecting action to the total positive relay; the instrument displays the warning information; and the total positive relay switches off a power system after receiving a shutdown signal sent by the vehicle controller. According to the control method of the water surface height detection alarming device, realizing of the designed functions of parts in the water surface height detection alarming device is guaranteed, and achieving of the technical purposes of a whole scheme is further guaranteed.
Description
technical field [0001] The invention relates to the field of electric vehicle parts and control methods, in particular to an electric vehicle water surface height detection and alarm device and control method. Background technique [0002] With the sharp reduction of fossil energy reserves and the development of motor drive technology, electric vehicles have developed rapidly in recent years; at the same time, the safety performance of electric vehicles has also attracted much attention, especially the waterproof performance. [0003] The power system (usually referred to as high-voltage system or high-voltage components) of electric vehicles is generally located in the chassis; when the vehicle is driving on a road with accumulated water, the driver cannot accurately judge the depth of the accumulated water by sight; When it is deep, it is very likely that the high-voltage components installed on the chassis will enter the water, which will cause a short circuit and cause h...
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IPC IPC(8): B60R16/023B60Q9/00B60L3/00
CPCB60L3/00B60Q9/00B60R16/0232
Inventor 付志强赵红光李阳李晓辉周传东翁福建高顺来田鹏武纪强于东超黄志宇
Owner ZHONGTONG BUS HLDG