●FR setting, rotary engine reproduction
● Three-motor oil-electricity architecture
● Front axle dual-wheel built-in motor
This patent is not so much a "revival plan" for rotary engines as an attempt by Mazda to continue to pursue driving pleasure under the trend of electrification. According to the patent sketch, Mazda is developing a hybrid with rear-drive structure, light weight and fast power supply, which looks like the development point of sports cars, doesn't it?
Although it is a rear drive structure, the center of gravity of the whole oil and electricity system is actually located in two hub motors installed on the front axle. These two in-wheel motors are driven by their own exclusive capacitors, and their fast charging and discharging characteristics enable them to meet the demand of sudden acceleration, and the electric energy generated by forced driving can also be quickly charged into the capacitors for the next acceleration. In addition, Mazda installed a 3.5kWh small-capacity lithium battery in the system, and operated it as a 48V system to meet the demand of severe charging and discharging of capacitors.
In this way, the system architecture of "lithium battery-capacitor-in-wheel motor" has the characteristics of small volume, light weight and fast charging and discharging, which is very suitable for being placed on the front wheel for body guidance, torque distribution of inner and outer wheels and so on. Without bringing too much weight, it is beneficial to the distribution of the center of gravity of the car body. The main power source is still the traditional fuel engine, which works together with the auxiliary motor located in the transmission system to exert force on the rear wheel, forming an electric four-wheel drive system with hybrid power and rapid response.
Mazda said that this system can be compatible with traditional engine forms such as inline engine and V-type engine, but the best match is the main rotor engine with small volume and high horsepower. After all, the engine room space is limited, and it is still a rotary engine after the introduction of a relatively complex oil and electricity system. There is a better chance to cram the whole power plant into the cabin. Although all the above are still in the patent sketch stage, we haven't even seen the money for trial production, but at least we are happy to see Mazda trying to give the rotary engine a chance to return to the rivers and lakes. In fact, the rotary engine will almost certainly be mass-produced on the extended-range version of the MX30 electric vehicle, but it will take the form of an extended-range generator as the power source and will not directly participate in the power output. If you really want to see it? Mazda's patent may be the only solution at present.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.