New energy electric vehicle temperature information acquisition and early warning control integrated device and method
A temperature information and control method technology, applied in battery/fuel cell control devices, electric vehicles, electrical devices, etc., can solve the problems of difficult installation, battery temperature detection devices without battery detection, cumbersome installation, disassembly and replacement, etc. To achieve the effect of ensuring accuracy and reliability, prolonging the use time and improving real-time performance
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Embodiment 1
[0085] The present invention provides a vehicle-mounted controller 3, and the method for detecting whether the temperature data of the vehicle-mounted controller 3 is abnormal includes:
[0086](1) The on-board controller 3 first selects a temperature random number s′∈Z p , for i∈{1,…,l}, randomly select λ′ i ,γ′ i ∈ Z p , calculate the temperature parameters of the battery and motor as follows:
[0087]
[0088] The temperature parameter CT of the battery and motor processed by the output part out ={s',C 0 ,(C i,1 ,C i,2 ,λ′ i ,γ′ i ) i∈{1,…,l}};
[0089] (2) The temperature parameter calculation chip of the on-board controller 3 receives the CT out , the result is verified to be correct by first checking the Whether it is true; if it is not true, directly output b=0, which means that the calculation result is incorrect; otherwise, for i∈{1,...,l}, the temperature parameter calculation chip of the on-board controller 3 calculates:
[0090] t i =(aλ' i -v ρ...
Embodiment 2
[0100] like Figure 5 As shown, the present invention provides a new energy electric vehicle set temperature information collection and early warning control method including:
[0101] S101, connect the voice alarm 2 and the data collector 6 to the vehicle-mounted controller 3 of the electric vehicle, and fix the data collector 6 through the mounting plate 20 and the strip-shaped fixing hole 21 . A plurality of wireless temperature detectors are respectively installed on different positions on the surface of the automobile battery 7 and the automobile motor 5, and are fixed by the ring magnet 9 for adsorption. The temperature parameters of the battery and the motor can be detected separately, and the detection is comprehensive.
[0102] S102, the temperature sensor 11 collects temperature data, and transmits the collected temperature data to the data collector 6 through the first ZigBee signal transmitter 12 and the second ZigBee signal transmitter 18, and the data collector ...
Embodiment 3
[0105] Based on embodiment 2, the method for determining the fault point includes:
[0106] mu k and d k Denote the delay from the wireless temperature detector to the on-board controller 3 and the delay from the on-board controller 3 to the actuator caused by the temperature detection network, respectively, in the finite set γ={0,…,μ}, Θ={0,…,d} Take the middle value, and the transition probability matrix is G=[λ ij ], H=[π rs ],λ ij and π rs as follows:
[0107] lambda ij =Prob{μ k+1 =j|μ k = i}, π rs =Prob{d k+1 =s|d k =r}
[0108] where λ ij ≥0,
[0109] A random variable α with value {0,1} k ,β k Respectively represent the loss of the data packet between the wireless temperature detector and the on-board controller 3 and between the on-board controller 3 and the actuator. When the value of the random variable is 1, it means that the data packet transmission is successful; otherwise, it means that the data packet transmission fails, and the following co...
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