Abstract: A battery system includes the battery compartment, haploid battery, polyploid battery and power management system; the bottom of battery compartment is divided into several elementary unit compartments provided with power jacks at four corners; each power jack is connected through a wire to form a power output terminal, then connected to the input terminal of the power management system; the size of the haploid battery matches that of a single elementary unit compartment, the polyploid battery isn't arranged in a single row, and two power contacts matching with the power jack are arranged on the diagonal of the battery's bottom surface; after power on, the power management system applies logics to determine models of the batteries in different positions of the battery compartment according to the voltage signal detected, then integrate voltage of each battery to the voltage required by appliance.

Abstract: A crank and connecting rod mechanism which can realize a Miller cycle and its control method, wherein an interior of a crankshaft is provided with a drive oil channel and a lock-up oil channel. A connecting rod neck of the crankshaft is arranged with an eccentric connecting rod bearing. In a crankshaft balance weight, a drive gear meshing with an outer meshing gear ring of the eccentric connecting rod bearing through an idle gear is installed. A planetary gear is installed in a drive gear hollow shaft. A lockpin is designed for the drive gear hollow shaft so as to lock with the crankshaft balance weight or with a planetary gear shaft.

Abstract: A battery system includes the battery compartment, haploid battery, polyploid battery and power management system; the bottom of battery compartment is divided into several elementary unit compartments provided with power jacks at four corners; each power jack is connected through a wire to form a power output terminal, then connected to the input terminal of the power management system; the size of the haploid battery matches that of a single elementary unit compartment, the polyploid battery isn't arranged in a single row, and two power contacts matching with the power jack are arranged on the diagonal of the battery's bottom surface; after power on, the power management system applies logics to determine models of the batteries in different positions of the battery compartment according to the voltage signal detected, then integrate voltage of each battery to the voltage required by appliance.

Abstract: A crank and connecting rod mechanism which can realize Miller cycle and its control method, wherein an interior of a crankshaft is provided with a drive oil channel and a lock-up oil channel. A connecting rod neck of the crankshaft is arranged with an eccentric connecting rod bearing. In a crankshaft balance weight, a drive gear meshing with an outer meshing gear ring of the eccentric connecting rod bearing through an idle gear is installed. A planetary gear is installed in a drive gear hollow shaft. A lockpin is designed for the drive gear hollow shaft so as to lock with the crankshaft balance weight or with a planetary gear shaft.