Inner and outer layer nesting ECMS (equivalent fuel consumption minimization strategy) multi-objective double-layer optimization method
A multi-objective optimization, double-layer optimization technology, applied to internal combustion piston engines, mechanical equipment, hybrid vehicles, etc., can solve problems such as non-derivability and discontinuity
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[0062] In this embodiment, a multi-objective double-layer optimization method of an equivalent fuel consumption minimum energy management strategy nested inside and outside is as follows: figure 2 As shown, it proceeds as follows:
[0063] Step 1, establish the multi-objective optimization model of plug-in hybrid electric vehicle;
[0064] Step 1.1. According to the vehicle power and transmission system parameters, as shown in Table 1, establish a vehicle longitudinal dynamics model on the Matlab / Simulink platform. This model mainly calculates the vehicle speed, acceleration, engine rotational angular velocity;
[0065] Table 1 Power and Transmission System Parameters
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[0070] In formula (1), (2), (3): T ω Torque required for driving the vehicle; T e is the engine output torque; T m is the output torque of the motor; T brake is the friction braking torque; i 0 transmission ratio of the main reducer; i g is the transmissi...
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