When it comes to new energy vehicles, the first thing that comes to mind is pure electric vehicles. It is also the focus of the current voice and the corresponding manufacturers. However, new energy has an urgent problem to be solved - the cruising range, the current pure electric vehicle surface It looks like a cruising range of up to 400 kilometers or more, but this is the manufacturer's data obtained at a constant speed of 40 to 50 kilometers per hour. Since there is no individual user to buy, the factory data can be reached. A big question mark, that is to say, the electric car is just like the electric bicycle. It is only suitable for short-distance driving in the urban area. It is necessary to greatly reduce the cruising range of the driving speed of more than one hundred.
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In fact, in addition to the cruising range problem, another headache is the charging problem, or when the power is running out of power and can not immediately find a suitable charging socket, what should I do? The current solution is mainly based on strong hybrid solutions, such as BYD's F3DM, Toyota's Prius, GM's Volt, etc. The above models are not specially developed car body or improved with the A-class car body, which is mainly considered The original engine compartment is how to plug the motor and the engine. The 1.0L three-cylinder engine used by the F3DM is the smallest, but there is no room for maneuvering on the micro-car, and the urban scooter needs to face the trend. The congestion of the urban road conditions, micro-cars are the best choice, how to include a compact micro-engine on the mini-car becomes a headache, and the Audi A1 electric car displayed last year successfully solved this problem. Big problem – incorporating a miniature Wankel rotary engine under the floor of the trunk.
Coincidentally, there have been recent media reports that Chery is developing a "line-lifting" electric car that will also use the Wankel-type engine to act as a temporary charging device, and its idea coincides with Audi, even from development time. On the calculation, the start time of the two is very close. Although Audi first showed its conceptual achievements, it did not go on sale. Even its carrier, the Audi A1 itself, has not been listed. Naturally, it is impossible to talk about plagiarism. In fact, it is in Audi. Before the release of its concept model, Chery has applied for relevant patented invention materials (applied in May 2009) at the domestic patent office, and it is said that it has been secretly carried out in the first two years in the test, and the basic information is officially disclosed until the end of the period. .
The declaration material refers to the pure electric vehicle power drive system of the power generation charging device, and explicitly mentions the complete vehicle generator set, transmission device, drive motor, control unit, power battery and battery management system composed of the engine and the electric motor, wherein the engine The generator is connected to the generator, and the driving motor is connected with the transmission device. The generator and the driving motor are electrically connected with the whole vehicle control unit, and the mechanical energy outputted by the engine is first converted into electric energy by the generator, and the converted electric energy is passed through the vehicle control unit to give power. The battery is charged or used to drive the motor to drive the vehicle. The vehicle generator set is only used for power generation and does not directly drive the vehicle. Since the invention is provided with a vehicle-mounted generator set, the engine can be started when the power battery is insufficient, the generator is generated to generate electricity and charged to the power battery, and the power battery is charged in time, thereby solving the short driving range of the existing pure electric vehicle. The problem.
As for the engine itself, Chery did not elaborate. It was not thought that it was a Wankel rotary engine, but it also conformed to the micro-car structure of the QQ model. After the three-cylinder 0.8L engine was installed, the excess space in the cabin was almost empty. Not to mention the motor, the solution is really only a very compact Wankel rotary engine. It happens that in the near future, a spy shot shows that Chery has successfully developed such an engine.
As a reference, you can choose the 300 ml mineral water bottle on the side, and the size of the human body on the side, which shows that the Wankel-type rotary engine is compact and compact, of course, it only plays the role of power generation, instead of pushing the whole vehicle. Therefore, its displacement will not be too large. Of course, the small displacement does not mean that the power will be poor. I believe that as long as the car-loving friends know the rotor engine used on the Mazda RX-8, in addition to the compact structure and smaller displacement, the power The performance is also quite strong, the displacement of 1.3L can reach or exceed the performance of some 2.0L engines; but the shortcomings are also very obvious, the precision requirements are very high, almost to a very demanding degree, the cost is not low, so the world realizes Mazda is currently only obsessed with mass production.
According to the information currently available, the maximum driving range of the pure electric QQ3 sedan is 120 to 150 km (the theoretical theoretical travel of the manufacturer at a constant speed). Once the power is depleted, the engine starts to charge, which can increase the maximum mileage to about 200 km. Although it failed to solve the problem of long-distance travel, it solved the problem of emergency charging.
At present, the detailed information about Chery's “Zero Line Extended Range†technology has not been officially disclosed. This is based on the preliminary information of its official disclosure. The extended-range QQ3 electric vehicles planned to be listed next year will be listed in the first batch. Sales, but the 15th batch of energy-saving and new energy vehicle demonstration catalogue announced in the 218 new car access catalogue, I am afraid that not only is the QQ3 adopted, it is expected that the M1 will also be adopted, and its catalog number is somewhat different from the previous pure electric vehicle. The former is the SQR7001 number, while the latter is the SQR7000 type. Of course, there is a problem to be reminded. The change of the number does not mean the adoption of the extended range technology. Whether the SQR7001 is the technical model mentioned in this article requires the confirmation of the catalogue data.
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