Physix FrontierVW ID.AURA T6 LiDAR Option Reflects Engineering Intuition
Just saw the declaration images for the Ministry of Industry and Information Technology's 409th batch. The styling of the ID.AURA T6 reminded me of the ID.GTI concept car I touched at the Munich Motor Show last year. With a length of 4811mm, width of 1879mm, and a wheelbase estimated around 2800mm, this size is typically compact-leaning-large among pure electric SUVs, fitting perfectly between the ID.4 and ID.6. Volkswagen's sizing strategy remains seasoned.
What really perked me up was the phrase "optional LiDAR" in the declaration info. This isn't Volkswagen's first attempt at LiDAR in the ID series, but previous configurations on the ID. Buzz were negligible, more like a technical verification. However, for this T6 version, looking at the configuration list, the LiDAR appears as an independent optional accessory, meaning it's not a bundled high-trim package but allows users to customize based on needs. Behind this pricing strategy lies Volkswagen's precise judgment of the LiDAR cost curve.
Let's look at the LiDAR itself first. Based on the external contours in the declaration images, it should be DJI Livox's HAP series or Hesai's AT128; both are mainstream automotive-grade semi-solid-state solutions currently available. Looking at line density, 128 lines is the basic threshold, with a detection distance of around 120 meters and a field of view of 120 degrees x 25 degrees. Placing these parameters in 2024, it's not exactly aggressive, but this is precisely Volkswagen's pragmatism—they don't need to show off muscle, just ensure reliability in basic functions like AEB and LCC.
From an engineering perspective, the LiDAR is installed at the front top of the roof, forming a cross-coverage area with the monocular camera. The advantage of this layout is avoiding blind spots in "ghost pedestrian" scenarios, and combined with forward millimeter-wave radar, it achieves redundant verification across three sensors. But the cost is increased wind resistance, estimated to add 0.01-0.02 to the drag coefficient, impacting range by roughly 5-8 kilometers. Volkswagen chose to sacrifice a bit of range for perception safety, which is reasonable in engineering terms because 600-kilometer-class range already forms redundancy, and the extra few kilometers are imperceptible to users.
Next, look at the computing platform. The declaration info didn't explicitly state the chip solution, but considering the architecture of the Volkswagen MEB platform, it's likely Mobileye EyeQ5 or Qualcomm Snapdragon Ride. Inferring from the LiDAR configuration, if it's EyeQ5, the computing power is around 24 TOPS, which can only support L2+ level functions like highway NOA. If it's Qualcomm Ride, the computing power can exceed 100 TOPS, supporting urban NOA. Volkswagen hasn't publicly announced any urban NOA plans yet, so EyeQ5 is more suspect. This choice is conservative but fits Volkswagen's consistent pace—stuff the LiDAR in as hardware redundancy first, then release functions once the software matures.
But here's a problem: The impact on power consumption and thermal management after adding LiDAR. A 128-line LiDAR consumes about 15-20W, the monocular camera around 5W, and the computing chip 30-50W. Adding up these extra consumptions is equivalent to putting a 50W heat source on the roof. As a family SUV, the T6 must consider interior temperatures after summer sun exposure; if the LiDAR's heat dissipation isn't done well, it easily leads to sensor failure. Volkswagen didn't show heat dissipation fins in the declaration images, but the black areas on the roof are usually heat dissipation grilles—the key is the temperature rise curve under stable operating conditions.
Returning to the industrial chain perspective. Volkswagen choosing to push LiDAR options at this time is actually betting on a trend: LiDAR prices are dropping rapidly. In 2023, the cost of an automotive-grade LiDAR was still 2000-3000 RMB; in 2024, it has dropped to 1000-1500 RMB. If Volkswagen's procurement volume is large enough, this price can be squeezed down another 20%. If the option price is set at 3000-5000 RMB, for users it's "buying insurance," and for Volkswagen, it's pre-embedding hardware for advanced intelligent driving in 2025.
But frankly, my thoughts on the implementation of this plan...
Original Link: https://www.ithome.com/0/975/462.htm