In winter, new energy vehicle owners seem to have more worries than in other seasons. Not only does the battery performance decline significantly in severe cold weather, which greatly reduces the driving range and charging efficiency, but more importantly, the ice and snow on the road caused by low temperatures pose many hidden dangers to driving safety. Especially for rear-wheel drive new energy vehicles, in extreme winter conditions, the risk of wheel slippage and loss of control is greater, making every trip full of unknowns and challenges.
At present, among the top 30 new energy pure electric models with a sales volume of RMB 150,000 and above, rear-wheel drive models account for more than 60%. In the era of fuel, rear-wheel drive cars, which represent "luxury and control", are still the darlings of the market in the new energy era due to their excellent weight distribution and control. However, as we mentioned earlier, rear-wheel drive models have obvious shortcomings in winter, which is also a common problem faced by the industry.
Aiming at the "pain point" of rear-wheel drive vehicles, VOYAH Motors has innovatively developed LFC technology. We recently came to Harbin to see whether VOYAH can break the "winter pain point" of new energy vehicles through this innovative technology.
1 minute quick read this article
1. The LFC technology developed by VOYAH, full name LFC Super Rear Drive Technology, is a technology specifically used to improve the driving stability and safety of new energy vehicles. Simply put, it is a technology that achieves precise control of electric drive braking and mechanical braking through the hydraulic brake compensation interactive interface between the chassis and VCU (vehicle control system).
2. The model we actually experienced was the recently launched VOYAH Zhiyin, which was equipped with VOYAH LFC super rear-wheel drive technology and snow studded tires. The test drive subjects included four major projects, namely ice and snow ring, serpentine slalom, right-angle turn and ice and snow gymkhana.
3. In the ice and snow ring test, thanks to the CDC suspension and LFC super rear-drive system, VOYAH Zhiyin showed extremely outstanding levels in terms of vehicle stability, suspension support, tire grip and steering direction.
4. Entering the Ice and Snow Gymkhana Circuit, the more complex and changeable roads put forward higher requirements for vehicles. The model we tested was the 236,900 yuan VOYAH Zhiyin Super Long-Endurance Smart Edition. The 6-second zero-to-hundred acceleration brought excellent power performance. In addition, when cornering, the vehicle steering was precise, and the LFC super rear-drive technology effectively adjusted the front and rear wheel braking force to ensure that it can still maintain stability when cornering at high speed.
5. In the right-angle turn on ice and snow, the VOYAH Zhiyin completed a 90-degree right-angle turn at a speed of 30-50km/h, and it was completed on a slight downhill slope. The VOYAH Zhiyin showed good control flexibility and stability.
6. The slalom test is an all-round test of the vehicle's handling. The VOYAH Zhiyin is equipped with a CDC adjustable damping suspension, which can automatically adjust the hardness of the suspension according to the real-time road conditions and vehicle speed, effectively improving the vehicle's driving stability. With the support of the LFC super rear-wheel drive, the VOYAH Zhiyin's rear end follows very naturally, and has excellent stability and precision when cornering.
What is LFC?
First of all, let us introduce to you what LFC is. LFC stands for LFC Super Rear Drive Technology, which is a technology specifically used to improve the driving stability and safety of new energy vehicles. In simple terms, it is a technology that achieves precise control of electric drive braking and mechanical braking through the hydraulic brake compensation interactive interface between the chassis and VCU (vehicle control system).
We all know that when new energy vehicles brake, they use electric braking (that is, kinetic energy recovery) to help the vehicle slow down, and at the same time recover some energy to increase the range. However, if the electric braking is not well controlled, it may cause the wheels to lock, especially on low-adhesion roads (such as snow and slippery roads). If the rear wheels lock, the vehicle is prone to out-of-control phenomena such as tailspinning, which is very dangerous.
The LFC super rear-drive technology is a technology that achieves precise control of electric braking and mechanical braking through the hydraulic brake compensation interactive interface between the chassis and the vehicle control system (VCU). It is like a smart "brake butler" that can dynamically adjust the ratio of electric braking and mechanical braking according to actual conditions, making the vehicle's braking more stable and controllable.
Specifically, when the vehicle needs to brake, LFC will adjust the strength of the electric brake in real time according to factors such as the wheel slippage and road conditions. If the electric brake is too strong, it may cause the wheel to lock, so LFC will reduce the strength of the electric brake and increase the strength of the mechanical brake to compensate for this part of the braking force. In this way, wheel locking can be avoided and the stability of the vehicle can be maintained.
Moreover, LFC can dynamically distribute the braking force according to the needs of the front and rear wheels of the vehicle. For example, in emergency braking, it may increase the braking force ratio of the rear wheels to stop the vehicle faster; in some situations where stability needs to be maintained, it will adjust the braking force distribution of the front and rear wheels to make the vehicle run more smoothly.
Snow and ice driving experience
Without further ado, let's actually drive the LFC to see how capable it is! First of all, we need to explain that we are test driving the VOYAH Zhiyin, which was just launched not long ago, and all models have been replaced with snow studded tires.
For this field test drive, VOYAH prepared four major projects for us, namely, ice and snow ring, serpentine slalom, right-angle turn and ice and snow gymkhana. In the ice and snow ring test, VOYAH Zhiyin demonstrated its excellent handling performance. Thanks to the synergy of CDC adjustable damping suspension and LFC super rear-drive technology, the vehicle maintained good stability and handling on the slippery ice surface. The driver can clearly feel that the vehicle is running smoothly along the predetermined trajectory, the steering is precise, and it can maintain excellent dynamic balance even under extreme conditions.
Entering the Ice and Snow Gymkhana Circuit, the more complex and changeable roads put forward higher requirements for vehicles. The model we test drove was the VOYAH Zhiyin Super Long-Endurance Smart Edition, which was priced at 236,900 yuan. The 6-second zero-to-hundred acceleration brought excellent power performance, and the excellent power ensured the smoothness of the overall power connection. When cornering, the vehicle steered accurately, and the LFC super rear-drive technology effectively adjusted the front and rear wheel braking force to ensure that it could remain stable when cornering at high speed. During driving, every time the vehicle showed a tendency to slide, the electronic system could quickly correct the body, and there was no large side slip or U-turn out of control throughout the whole process.
In the ice and snow right-angle turn project, VOYAH Zhiyin completed a 90-degree right-angle turn at a speed of 30-50km/h, and completed it on a slight downhill slope. VOYAH Zhiyin showed good handling flexibility and stability. For traditional rear-wheel drive models, it is easier for the rear wheels to slip when turning on ice and snow covered roads, which may cause the vehicle to lose control or unstable steering. LFC super rear-wheel drive technology effectively reduces the rear wheel slippage, allowing the vehicle to complete right-angle turns in a stable posture.
In the ice and snow slalom test, the handling performance of VOYAH Zhiyin was fully demonstrated. The vehicle's power response was quick and the power retention was very good. At the same time, the steering was natural and smooth, and the rear of the car followed the front of the car closely, showing excellent followability. The intelligent adjustment of the LFC super rear-drive technology ensured the stability of the vehicle in continuous bends, and the flexible adaptation of the CDC suspension kept the body stable during intense driving, bringing a stable control experience to the driver.
Excellent comfort
It is stable to drive. In Harbin, where the temperature is over -20 degrees Celsius, the VOYAH Zhiyin also gave us a big surprise in terms of comfort. First of all, the air conditioning is very powerful, and the seat heating can ensure the comfort of the people in the car. In addition, according to the official statement, VOYAH Zhiyin was developed with the winter travel needs of users in low-temperature and cold areas in mind at the beginning, and is also specially equipped with App advance temperature control, defog mode, heat pump air conditioning system, battery thermal management and other configurations to greatly improve the comfort and safety of winter travel.
In addition to its comprehensive configuration, VOYAH Zhiyin also has spacious space, with a room ratio of 86.7% and rear legroom of 969 mm, which is a leading absolute space in the same class.
Summary: As the fourth model of the VOYAH brand and the first model that only launches a pure electric version, the overall product strength of the VOYAH Zhiyin is still very strong. Whether it is design, space, endurance or power control, the new car has a good performance.
This time we came to Harbin to experience the performance of VOYAH Zhiyin on ice and snow roads in high-altitude cold areas, which can be said to have brought us quite a surprise. LFC super rear-wheel drive technology is the solution given by VOYAH Zhiyin to the pain points of new energy vehicles in winter. In actual experience, it is indeed very powerful, and it really improves the safety and stability of users on ice and snow roads. Some friends may say, isn't it just a simple control of the braking system? That's right, but it is a very difficult thing to control it so finely. LFC deserves our praise for VOYAH !
