plug-in hybrid Why can type in a congested environment, both fuel-efficient and energy saving do it, I just do related work of new energy vehicles, can be explored and discuss the main issues.
First of all, we know that a plug-in hybrid powertrain combines two traditional fuel vehicles and pure electric vehicles, it means plug-in hybrid type having two different sets of drive train, a motor drive train is the group consisting of + battery, another set of machines is the fuel powertrain. So, plug-in hybrid model also supports purely electric drive, hybrid and pure power mode with the engine running three drive modes.
In congested road, the motor vehicle can be preferentially activated in a low speed state, so that when the vehicle is traveling in the electric-only mode. Then the engine can avoid congested roads and urban cycle greatest possible fuel savings, this time a plug-in hybrid can do the fuel-efficiency. Furthermore, now plug-in hybrid type battery capacity generally up to about 10 ~ 25KWh, so electric mileage can reach values 50-100km, using a sufficient city. In addition, plug-in hybrid type in congested traffic, the efficiency of the energy recovery system will be higher, so it is more power saving.
In summary, the reason why the plug-in hybrid type power more fuel at congested road, is largely determined by its own hybrid powertrain system .