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Deciphering BYD Yunnian P, oil and gas spring+smart chassis amplification trick

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電動汽車觀察家 Jun 9, 2023 18:23 · 22.1k Views
The Yunnian P intelligent body hydraulic control system mounted on the Yangwang U8 is a suspension system recently developed by BYD. It has just passed international certification. With the support of YunniP, the Yangwang U8 can perform operations such as body height adjustment, body leveling, and wading to raise the body. So how did Yunnian P do it?

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Transcript
  • 00:00 Look up at U8's in-situ U-turn emergency floating water mode, I'm sure you've all seen it
  • 00:04 Well, these off-road scenarios, which cannot be achieved by traditional off-road vehicles, let us see the powerful performance of the Yisifang platform
  • 00:10 Perhaps the Yisifang platform is too powerful. Another important technology cloud point P seems to have been overlooked by us
  • 00:16 Recently I went to the CloudPoint P technology sharing session and got a new understanding of this technology
  • 00:20 Let's talk about Cloud Point P in detail from technical principles and application scenarios
  • 00:24 Cloud Point P is a body control system based on hydraulic principles, which allows looking up at the U8 to balance off-road performance
  • 00:29 It can also take into account the comfort of the city
  • 00:31 Although this technology is complicated, its hydraulic operation principle is quite simple to understand
  • 00:35 Looking up at the U8 four-wheel shock absorber, it doesn't look much different from an ordinary car
  • 00:39 But it has a scientific name called an oil and gas spring. The inside of the oil and gas spring is filled with shock absorbers oil oil and gas springs
  • 00:45 It is then connected to the accumulator controller through a high-pressure pipeline. When the oil and gas spring is squeezed and needs to shrink
  • 00:51 The damping oil is discharged into the accumulator
  • 00:53 In this process, the force of vibration is released as the oil flows
  • 00:57 It can play a buffering role
  • 00:59 And when the oil and gas spring needs to maintain the rigidity of the support, the damping oil in the accumulator is pumped into the oil and gas spring through the controller's control to increase the oil pressure
  • 01:07 This improves the supportability of the shock absorber
  • 01:09 Cloud Point P technology is based on the principle of hydraulic shock absorption, and the active hydraulic body control system further developed by adding components such as calculation centers brings more functions
  • 01:18 First, Cloud Point P has three levels of adjustable shock absorption stiffness and continuously adjustable damping
  • 01:24 It allows you to look up at the U8 while taking into account the two completely different suspension training needs of off-road and urban
  • 01:28 It can have the best performance under off-road and urban conditions
  • 01:32 Second, Cloud Point P is equipped with a fusion camera lidar
  • 01:35 The function of pre-targeting the road surface has been implemented. After calculation by the calculation center
  • 01:39 The softness and hardness of the suspension can be actively adjusted in advance to isolate the impact of wheel runout on cockpit comfort
  • 01:45 Third Cloud Point P's four-wheel linkage technology can independently adjust the four-wheel suspension height
  • 01:49 The height of the left and right suspensions can be adjusted in the face of working conditions such as cross axes when off-road
  • 01:53 Lengthen the suspension stroke to increase grip and thereby improve the passability of the vehicle
  • 01:57 These new features bring more usage scenarios to look up to U8
  • 02:00 For example, when camping, you can use the camping leveling function
  • 02:03 When the height of the four wheels of the car body is different, adjust the cloud point P
  • 02:07 When looking up at the U8, the body is adjusted to a horizontal state to meet the need to rest in the car when camping outdoors
  • 02:12 In the city traffic jam scene, in the face of frequent starting and braking, I looked up at U8
  • 02:15 The vehicle can be dynamically monitored through body posture sensing and driver behavior sensing
  • 02:20 Instantly increases the stiffness and damping of the suspension to suppress acceleration and braking nod
  • 02:25 Reduces passengers' risk of motion sickness
  • 02:27 In wading off-road scenarios, Yunnian P can provide 150 mm of active adjustment travel for looking up at U8
  • 02:33 By lifting the car body, the depth of the bare car is as high as one meter
  • 02:37 It has greatly exceeded the depth of wading of traditional off-road vehicles
  • 02:40 Through this Cloud Point P technology sharing session, I also learned more about the technical principles and usage scenarios of Cloud Point P
  • 02:45 Look up to the U8 as BYD's first million-class luxury car
  • 02:48 The Yisifang Electric Drive System Cloud Point P body control system has been fully displayed
  • 02:52 It also increased our expectations for U8 off-road performance
  • 02:55 Climbing to the top of Peru's Tusha Peak is just the beginning of exploring and looking up to the U8's off-road performance
  • 02:59 I think it has more surprises waiting for us
  • 03:01 Well, fans, what difficult off-road scenes are you looking forward to U8 to conquer
  • 03:05 Please post your expectations on the public screen