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CN-121989846-A - 48V redundant power supply system of vehicle and automobile

CN121989846ACN 121989846 ACN121989846 ACN 121989846ACN-121989846-A

Abstract

The invention belongs to the technical field of electric appliance architecture of vehicles, and particularly relates to a 48V redundant power supply system of a vehicle and an automobile. The 48V redundant power supply system comprises a high-voltage module and a low-voltage module, wherein the high-voltage module is respectively connected with a first high-voltage conversion module and a second high-voltage conversion module, the first high-voltage conversion module and the low-voltage conversion module are connected with a first power distribution module, the second high-voltage conversion module is connected with a second power distribution module, the first power distribution module and the second power distribution module are both connected with a first 48V load and an area controller assembly, the area controller assembly is connected with a second 48V load, and an isolation module is arranged between the first power distribution module and the second power distribution module. The introduction of the 48V system of the present invention not only improves the performance and efficiency of the automobile, but also helps to address these challenges. And the 48V redundant power distribution meets the functional safety requirement of high-order intelligent driving and ensures the normal power supply of the load under single-point failure.

Inventors

  • CAI LEI
  • SHU ZHAOKUN
  • YU SHIYUN

Assignees

  • 安徽江淮汽车集团股份有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (8)

  1. 1. A48V redundant power supply system for a vehicle is characterized by comprising a high-voltage module and a low-voltage module, The high-voltage module is respectively connected with the first high-voltage and low-voltage conversion module and the second high-voltage and low-voltage conversion module, the first high-voltage and low-voltage conversion module is connected with the first power distribution module, and the second high-voltage and low-voltage conversion module is connected with the second power distribution module; the first power distribution module and the second power distribution module are connected with the first 48V load and the regional controller assembly; The regional controller assembly is connected with a second 48V load, and an isolation module is arranged between the first power distribution module and the second power distribution module.
  2. 2. The 48V redundant power supply system for a vehicle of claim 1, wherein the first 48V load and the second 48V load are each a set of more than one 48V load.
  3. 3. The 48V redundant power supply system for a vehicle of claim 1, wherein said zone controller assembly is a collection of two or more zone controllers.
  4. 4. The 48V redundant power supply system for a vehicle of claim 1, wherein a first 48V power source is coupled to the first power distribution module and a second 48V power source is coupled to the second power distribution module.
  5. 5. A 48V redundant power supply system for a vehicle, comprising a high voltage module and a low voltage module; the high-voltage module is respectively connected with a first high-voltage and low-voltage conversion module and a second high-voltage and low-voltage conversion module, wherein the first high-voltage and low-voltage conversion module is connected with a first 48V power supply and a first power distribution module, and the second high-voltage and low-voltage conversion module is connected with a second 48V power supply and a second power distribution module; The first 48V power supply, the second 48V power supply, the first power distribution module and the second power distribution module are all connected with the regional controller assembly, and the regional controller assembly is connected with the first 48V load, the second 48V load and the 12V load respectively.
  6. 6. The 48V redundant power supply system of a vehicle of claim 5, wherein the zone controller assembly is integrated with a first 48/12V DCDC, a low power consumption 48/12V DCDC and an isolation module, the first 48V power supply, the second 48V power supply, the first power distribution module and the second power distribution module being connected to the first 48V load and the second 48V load through the isolation module; The first 48/12V DCDC and the low-power consumption 48/12V DCDC are connected with a 12V load.
  7. 7. The 48V redundant power supply system of claim 5, wherein the first 48V power supply and the first power distribution module are connected to the first 48/12V DCDC and the low power consumption 48/12V DCDC via the isolation module, and the second 48V power supply and the second power distribution module are connected to the first 48/12V DCDC and the low power consumption 48/12V DCDC.
  8. 8. An automobile characterized by a 48V redundant power supply system using the vehicle of any one of the preceding claims 1 to 7.

Description

48V redundant power supply system of vehicle and automobile Technical Field The invention belongs to the technical field of electric appliance architecture of vehicles, and particularly relates to a 48V redundant power supply system of a vehicle and an automobile. Background The evolution direction of EE (electronic appliance) architecture is gradually transitioning from distributed to domain-centric and then to central computing. Along with the improvement of the intelligent degree and the electromotive degree of the automobile, the number of the vehicle-mounted electronic devices is in a surge state, wherein key components with high power consumption characteristics such as a drive-by-wire chassis, an active suspension, a multi-region air conditioner and a high-order intelligent driving system are covered. The traditional 12V electronic appliance architecture faces physical limit constraint in the power output dimension, the maximum power bearing capacity is only 5kW, the actual power requirement of the current vehicle-mounted electric appliance load is difficult to meet, meanwhile, the architecture also has the problems of whole vehicle weight redundancy and high energy consumption of a low-voltage system, and the pain point needs to be systematically solved through technical upgrading. Based on the above, the 48V domain control architecture has a core value of significantly improving the limit load capacity of the low-voltage system, so as to effectively adapt and meet the core requirements of vehicle intelligent and electric development. In the early-stage vehicles adopting 12V electronic and electric architecture, a 48V electronic and electric architecture is not used, and in order to solve the problem, the prior art proposes adding a low-voltage system of 48V electronic and electric appliances in the 12V electronic and electric architecture. Some light hybrid vehicles are newly added or replaced with hybrid systems of 48V electronic and electric appliance architecture on the basis of original 12V storage batteries. However, the above situation has more or less technical drawbacks: 1) The low voltage load bearing capacity exceeds the limit and cannot meet new requirements. 2) Only a 48V low-voltage system is added, and the high-order intelligent driving requirement cannot be supported by redundancy-free power distribution. 3) The 48V technology of light mixing is mainly used for saving the ginseng and reducing the emission, and simultaneously improving the user experience and cannot improve the problem of low-voltage limit load. Disclosure of Invention The invention aims to provide a 48V redundant power supply system of a vehicle and an automobile, wherein the 48V redundant power supply system can improve a low-voltage limit load to meet power requirements of intelligent driving, a drive-by-wire chassis and the like, and the redundant power distribution requirements of high-order intelligent driving are met through a redundant power distribution framework on the basis. In order to achieve the above purpose, the application is realized by the following technical scheme: A48V redundant power supply system for a vehicle includes a high voltage module and a low voltage module, The high-voltage module is respectively connected with the first high-voltage and low-voltage conversion module and the second high-voltage and low-voltage conversion module, the first high-voltage and low-voltage conversion module is connected with the first power distribution module, and the second high-voltage and low-voltage conversion module is connected with the second power distribution module; the first power distribution module and the second power distribution module are connected with the first 48V load and the regional controller assembly; The regional controller assembly is connected with a second 48V load, and an isolation module is arranged between the first power distribution module and the second power distribution module. Further, the first 48V load and the second 48V load are each a set of more than one 48V load. Further, the zone controller assembly is a collection of more than two zone controllers. Further, a first 48V power supply is connected with the first power distribution module, and a second 48V power supply is connected with the second power distribution module. A48V redundant power supply system of a vehicle comprises a high-voltage module and a low-voltage module; the high-voltage module is respectively connected with a first high-voltage and low-voltage conversion module and a second high-voltage and low-voltage conversion module, wherein the first high-voltage and low-voltage conversion module is connected with a first 48V power supply and a first power distribution module, and the second high-voltage and low-voltage conversion module is connected with a second 48V power supply and a second power distribution module; The first 48V power supply, the second 48V power supply, the first power distributio