DC/DC (DC-DC converter) control method of hybrid power vehicle
A technology of hybrid electric vehicles and control methods, which is applied to electric vehicles, battery/fuel cell control devices, control devices, etc., can solve the problems of reduced energy conversion efficiency, different control methods, and large losses, so as to improve conversion efficiency and reduce energy consumption. Small transmission loss and improved fuel economy
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[0038] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0039] figure 1 It is a schematic diagram of the DC / DC control structure of a hybrid vehicle according to the present invention. like figure 1 As shown, a hybrid electric vehicle DC / DC control structure according to the present invention includes a drive / generator motor 12, a motor controller 7, a high-voltage DC bus 3, a first Hall current sensor 6, a power battery 2, a DC / DC 8. Vehicle low-voltage load 10 , low-voltage DC bus 5 , 12V battery 4 , second Hall current sensor 9 , Hall voltage sensor 11 , vehicle controller 1 .
[0040] The high-voltage terminals of the motor controller 7 , the power battery 2 and the DC / DC 8 are connected in parallel on the high-voltage DC bus 3 . The drive / generator motor 12 can be used as a motor to consume electricity or as a generator to generate electricity, and the motor controller 7 can convert high...
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