What is the driving principle of BYD Qin Plus DM-i?
3 Answers
The driving principle of BYD Qin Plus DM-i is that in fuel mode, the accelerator pedal position sensor detects the pedal position and sends the signal to the engine ECU. The ECU controls the change in fuel injection pulse width to regulate the increase or decrease of engine speed. Below is an introduction to the BYD Qin Plus: 1. Body dimensions: The length, width, and height are 4765 mm, 1837 mm, and 1495 mm respectively, with a wheelbase of 2718 mm. 2. Powertrain: Equipped with a 1.5-liter naturally aspirated engine. This engine has a maximum power of 81 kW at 6000 rpm and a maximum torque of 135 Nm at 4500 rpm. The engine features multi-point fuel injection technology and uses an aluminum alloy cylinder head and block.
The core driving principle of the BYD Qin Plus DMI lies in its hybrid system design. I often drive this type of vehicle. During startup, it primarily relies on the electric motor, powered by the large battery, making it quiet and smooth. The engine only kicks in during acceleration or high-speed driving to provide additional power. The engine not only drives the wheels but also generates electricity to recharge the battery, making it fuel-efficient and highly effective. During driving, the system automatically switches between pure electric and hybrid modes based on speed and battery level, with simple operation via the central control screen. I find this car notably fuel-efficient, mostly using electricity in the city and hybrid mode for long trips without range anxiety. Plus, the battery has a long lifespan with low maintenance costs, combining the advantages of both electric and fuel-powered vehicles, offering a comfortable and reliable driving experience.
The daily experience of driving a BYD Qin Plus DMI is quite flexible in terms of its driving mechanism. I use it for my daily commute, and the engine only kicks in when necessary, such as during acceleration or uphill driving. On flat roads or at low speeds, it primarily relies on the electric motor, with the engine also serving as a generator to charge the battery, ensuring continuous energy efficiency. Charging is convenient—it can be done using a standard household socket, and with a high battery level, it offers dozens of kilometers of pure electric range. The system automatically regulates during driving without requiring any intervention, and the steering and acceleration responses are quick. I particularly appreciate its smoothness, with noticeably less noise and vibration compared to traditional fuel-powered cars. In the long run, maintenance is simpler and less frequent, and the need for refueling is reduced, saving a significant amount of money compared to conventional gasoline cars. The overall design is thoughtful and practical, making it suitable for commuting or family trips.
