Zero Emission Passat Lingyu @ Michelin Challenge Bibendum 2019 In Shanghai
The zero emissions version of the Passat Lingyu is ahead of its time. Volkswagen鈥檚 long-term collaborative work with the world鈥檚 most creative thinkers in developing new solutions for a clean future. Tongji University, which by the way was founded by Germans as a 鈥渕edical school鈥?in 1907, is one of the most respected universities in Asia today. The fact is: The students and professors developed the Passat Lingyu to be one of the first vehicles whose fuel cell was practically entirely created at a Chinese university. An extraordinary performance. The Passat is powered by an 88 kW strong electric motor. The low-temperature fuel cell from the Tongji University supplies the energy; it is the fourth generation to be developed on the campus so far. The hydrogen fuel cell is located in the underbody of the Passat Lingyu. The fuel cell system develops a peak power of 55 kW. The energy recovered by converting hydrogen (H2) into water (H2O) is fed into a lithium ion battery. It is located beneath the rear bench seat and has a capacity of eight Ampere-hours (Ah) at 376 Volt (V). The gaseous hydrogen (total of 3.2 kilograms) is transferred to a carbon fiber reinforced pressure tank at 350 bar. Assuming an average consumption of about 1.36 kilograms H per 100 kilometers, the theoretical range would be 235 kilometers on one tank of fuel. The torque-strong electric drive (210 Nm) delivers a very special and fascination. Mounted on the driven front axle, the motor provides for reasonable acceleration times (0-100 km/h: 15 s) and a top speed of 140 km/h. During faster accelerations the lithium ion battery plays a supporting role. When the Passat Lingyu is braked, on the other hand, energy flows back into the battery. It is located beneath the rear bench seat and has a capacity of eight Ampere-hours (Ah) at 376 Volt (V).
Traction is rated at A, B, or C, with A being the highest and most desirable. Wear ratings between 300-400 are good, while a rating between 500-700 would be considered very good. Also, the higher the wear rating, the longer the tire will last. What does that mean? Mud and Snow, which means that the tires are built to handle such extreme conditions. If your vehicle doesn't see much of either, "all-season" tires would probably be a better choice. Q: How big of a wheel can I really fit on my car/truck? A: Unfortunately, the answer to this question seems to be constantly changing as people figure out new ways to install extreme wheel sizes on their vehicles every day. If someone were to say 10 years ago (when 20-inch wheels were considered extreme) that there would be trucks driving down the road with 30-inch wheels, we would have all laughed, but that's the reality of today. The true issues arise when considering the safety of such fitments.
Can your vehicle's brakes handle the additional rotational mass and stop the vehicle without overheating? Will the anti-lock function properly? What effect will lifting a vehicle to accept such large wheels have on its stability? Will lowering the vehicle over large wheels allow adequate steering clearance, or will modifications have to be made? If so, will these modifications compromise the general safety and road-worthiness of the vehicle? These are all considerations to make when planning out your wheel and tire combination, and should not be taken lightly if they will be installed on a street-driven vehicle. Q: How do you rotate directional tires? A: Directional tires can only be rotated from front to rear, assuming that the tires aren't staggered in size. In essence, your front driver's side tire would be switched to the rear driver's side position, and the rear driver's side tire would then be mounted on the driver's side front position.
The procedure would then be repeated for the passenger side of the vehicle. Q: What is the difference between "offset" and "backspacing"? A: Offset is the distance from a wheel's mounting pad to the true center of the wheel, and is usually measured in millimeters. As an example, a wheel whose mounting pad is equidistant from both the front and rear faces of the wheel would be a 0mm-offset wheel. 15mm-offset wheel. Conversely, if the pad were 15mm closer to the rear of the wheel, it would be a -15mm-offset wheel. Backspacing, which is usually measured in inches, is the distance from the wheel's mounting pad to the rear of the wheel. Be sure to account for any tire bulge when deciding on your final wheel choices. Q: I bought 17x8-inch wheels, but they seem wider than that. A: Well, they are wider, actually. Wheel manufacturers measure the width of wheels from the inside of the tire beads, so a wheel that is marked as a 17x8 is most often closer to being nine inches wide when measured from the outside lips.
