CN115817382A - Power supply circuit of intelligent driving auxiliary system, intelligent driving auxiliary system and vehicle - Google Patents
Power supply circuit of intelligent driving auxiliary system, intelligent driving auxiliary system and vehicle Download PDFInfo
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Abstract
The utility model relates to a drive auxiliary control technical field, in particular to auxiliary system's power supply circuit is driven to intelligence, auxiliary system and vehicle are driven to intelligence, and wherein, auxiliary system is driven to intelligence includes first treater and the second treater that each other is redundant, and auxiliary system's power supply circuit is driven to intelligence includes: the first power supply sub-circuit and the second power supply sub-circuit are arranged independently and are redundant power supplies, and the first power supply sub-circuit, the second power supply sub-circuit and the first power supply management integrated circuit to the third power supply management integrated circuit are arranged independently and are connected with the first power supply management integrated circuit and the third power supply management integrated circuit respectively and used for supplying power to the first processor and the load; the second power supply sub-circuit is respectively connected with the second power supply management integrated circuit and the third power supply management integrated circuit and is used for supplying power to the second processor and the load. Therefore, the problem that the power supply or the load is cut off when the power supply is abnormal and the failure of an internal circuit and a device can cause the failure of the integral controller in the related art is solved.
Description
Technical Field
The application relates to the technical field of driving assistance control, in particular to a power supply circuit of an intelligent driving assistance system, the intelligent driving assistance system and a vehicle.
Background
Electricity is an important element of automotive electronic systems, and power supplies provide power and are the source of electricity. Most of the redundant power supply schemes of the current intelligent driving auxiliary system controller are still internally independent and externally integrated. Namely, power supply distinction is made inside the controller, but the same group of wires or the same power supply source is adopted at the external power supply input. For example, when the batteries are failed due to short circuit, open circuit and the like by using different output circuits of the same group of batteries, two input power supplies in the controller are failed simultaneously due to common reasons, and the significance of redundancy is lost. As another example, a redundant design is used at the primary power supply, within the intelligent driving assistance control system controller. And at the output of the primary power supply, the two paths of outputs are combined together to achieve the purpose of redundancy. The method only solves the problem of failure of the external power supply, and ignores the problem of failure of the whole controller caused by failure of internal circuits and devices.
In the related art, an intelligent power distribution unit is adopted to detect input power supply abnormity, a main power supply battery pack is provided, high voltage is converted into low voltage through a DC/DC transformer, a domain controller supplies power to a conventional load, and a first auxiliary power supply and a second auxiliary power supply continuously supply power to equipment in an abnormal state. Meanwhile, the intelligent power distribution unit performs intelligent power distribution for safety loads and other loads. The power supply voltage detection module periodically provides detection for power supply abnormality, and cuts off a power supply or a load when the power supply is abnormal, so that the safety of a circuit is protected. However, the problem that a power supply circuit between an intelligent power distribution unit and a load fails is ignored, and only one cutting is performed when a fault occurs, so that the existing intelligent driving auxiliary system controller with redundancy requirements cannot be met; and meanwhile, the requirements of the intelligent driving assistance system controller on the power supply cannot be met by diagnosing time and failure.
Disclosure of Invention
The application provides a power supply circuit of an intelligent driving assistance system, the intelligent driving assistance system and a vehicle, which are used for solving the problems that in the prior art, a power supply or a load is cut off when a power supply is abnormal, and the failure of an internal circuit and a device can cause the failure of an integral controller.
An embodiment of a first aspect of the present application provides a power circuit of an intelligent driving assistance system, where the intelligent driving assistance system includes a first processor and a second processor that are redundant to each other, where the circuit includes: the first power management integrated circuit is used for meeting the power supply requirement of the first processor and cutting off the input power supply of the first processor when the first processor is identified to be in fault; the second power management integrated circuit is used for meeting the power requirement of the second processor and cutting off the input power supply of the second processor when the second processor is identified to have a fault; the third power management integrated circuit is used for meeting the power supply requirement of a load and cutting off the input power supply of the load when the load is identified to have a fault; a first power supply sub-circuit, coupled to the first power management integrated circuit and the third power management integrated circuit, respectively, for supplying power to the first processor and the load; and the second power supply sub-circuit is respectively connected with the second power supply management integrated circuit and the third power supply management integrated circuit and is used for supplying power to the second processor and the load, wherein the first power supply sub-circuit and the second power supply sub-circuit are mutually independent and are mutually redundant power supplies.
According to the technical means, the first power supply sub-circuit and the second power supply sub-circuit can be used for independently inputting two paths of power supplies, when one path of power supply fails, the other path of power supply can be switched to supply power for the next-stage load, and therefore the problem that the intelligent driving auxiliary system controller is affected by the failure of the power supply is avoided; the input voltage is converted into the multi-path voltages with different levels by combining the power management integrated circuit, the power supply requirement of the subordinate load is met, and when the fault is identified, the input power supply is cut off in time, so that the safety of the circuit is protected.
Optionally, in an embodiment of the present application, the first power supply sub-circuit includes: a first power supply; the first switch is used for controlling the connection or disconnection of the first power supply and the power supply circuit; and the first power supply management module is used for collecting the voltage of the first power supply and enabling or disconnecting the first switch according to the voltage.
According to the technical means, the first switch can be used for controlling the on-off of the first power supply, and the first power supply management module is used for collecting the voltage of the power supply input point to monitor the quality of the power supply.
Optionally, in an embodiment of the present application, if the first power voltage meets an enable condition, the first switch is enabled, otherwise, the first switch is turned off.
According to the technical means, the first switch can be controlled to be enabled or disconnected by judging whether the first power supply voltage meets the enabling condition, and the fault of the intelligent driving assistance system controller is prevented from being influenced by the failure of the first power supply.
Optionally, in an embodiment of the present application, the second power supply sub-circuit includes: a second power supply; the second switch is used for controlling the second power supply to be connected with or disconnected from the power supply circuit; and the second power supply management module is used for collecting the voltage of the second power supply and enabling or disconnecting the second switch according to the voltage.
According to the technical means, the second switch can be used for controlling the on-off of the second power supply, and the second power supply management module is used for collecting the voltage of the power supply input point to monitor the quality of the power supply.
Optionally, in an embodiment of the present application, if the voltage of the second power supply satisfies an enable condition, the second switch is enabled, otherwise, the second switch is turned off.
According to the technical means, the second switch can be closed by judging the overvoltage and undervoltage condition that the second power supply voltage exceeds the set range, and the fault that the intelligent driving auxiliary system controller is influenced by the failure of the second power supply is avoided.
Optionally, in an embodiment of the present application, the method further includes: and the third power supply management module is used for managing the power supply connection or disconnection of the first processor.
According to the above technical means, in the embodiment of the application, the third power management module may switch on or off the power supply of the first processor by determining whether the input voltage meets the power supply requirement of the load of the first processor.
Optionally, in an embodiment of the present application, the method further includes: and the fourth power management module is used for managing the connection or disconnection of the power supply of the second processor.
According to the above technical means, in the embodiment of the application, the fourth power management module may switch on or off the power supply of the second processor by determining whether the input voltage meets the power supply requirement of the load of the second processor.
An embodiment of a second aspect of the present application provides an intelligent driving assistance system, including: a first processor and a second processor; the power circuit of the intelligent driving assistance system according to the above embodiment, wherein the power circuit includes mutually independent and mutually redundant power supplies, and the power supplies are respectively used for supplying power to the first processor, the second processor and the load.
Optionally, in an embodiment of the application, the first processor and the second processor are redundant in relation.
An embodiment of a third aspect of the present application provides a vehicle including the intelligent driving assistance system according to the above embodiment.
Therefore, the application has at least the following beneficial effects:
1. according to the embodiment of the application, two paths of power supplies which are independently input into the first power supply sub-circuit and the second power supply sub-circuit can be adopted, when one path of power supply fails, the other path of power supply can be switched to supply power to the next stage of load, and therefore the problem that the intelligent driving assistance system controller is influenced by the failure of the power supply is avoided; the input voltage is converted into the multi-path voltages with different levels by combining the power management integrated circuit, the power supply requirement of the subordinate load is met, and when the fault is identified, the input power supply is cut off in time, so that the safety of the circuit is protected.
2. According to the embodiment of the application, the first switch can be used for controlling the on-off of the first power supply, and the first power supply management module is used for collecting the voltage of the power supply input point to monitor the quality of the power supply.
3. According to the embodiment of the application, whether the first power supply voltage meets the enabling condition or not can be judged, the first switch is controlled to be enabled or disconnected, and the problem that the intelligent driving auxiliary system controller is influenced due to the fact that the first power supply fails is avoided.
4. According to the embodiment of the application, the second switch can be used for controlling the on-off of the second power supply, and the second power supply management module is used for collecting the voltage of the power supply input point to monitor the quality of the power supply.
5. According to the embodiment of the application, the second switch can be closed under the condition that the second power supply voltage exceeds the overvoltage and undervoltage within the set range, and the fault of the intelligent driving auxiliary system controller is prevented from being influenced by the failure of the second power supply.
6. According to the embodiment of the application, the third power management module can be used for switching on or switching off the power supply of the first processor by judging whether the input voltage meets the power supply requirement of the load of the first processor.
7. According to the embodiment of the application, the fourth power management module can be used for switching in or switching off the power supply of the second processor by judging whether the input voltage meets the power supply requirement of the load of the second processor.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram illustrating a power circuit of an intelligent driving assistance system according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of a first power supply sub-circuit provided in accordance with an embodiment of the present application;
FIG. 3 is a block diagram of a second power supply sub-circuit provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a switching manner of a first power supply sub-circuit and a second power supply sub-circuit according to an embodiment of the present disclosure;
fig. 5 is a block diagram illustrating an intelligent driving assistance system according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
A power supply circuit of an intelligent driving assistance system, and a vehicle of the embodiments of the present application are described below with reference to the drawings. In view of the problems mentioned in the background art, the present application provides a power supply circuit of an intelligent driving assistance system, which adopts two paths of power supplies independently input by a first power supply sub-circuit and a second power supply sub-circuit, and when one path of power supply fails, the other path of power supply is switched to supply power for a next-stage load, so as to avoid the fault of the intelligent driving assistance system controller due to the power supply failure; the input voltage is converted into the multi-path voltages with different levels by combining the power management integrated circuit, the power supply requirement of the subordinate load is met, and when the fault is identified, the input power supply is cut off in time, so that the safety of the circuit is protected. Therefore, the problem that the power supply or the load is cut off when the power supply is abnormal in the related art, and the failure of the integral controller caused by failure of internal circuits and devices is ignored is solved.
Specifically, the intelligent driving assistance system of the embodiment of the present application includes a first processor and a second processor that are redundant to each other, and fig. 1 is a block diagram of a power circuit of the intelligent driving assistance system provided in the embodiment of the present application.
As shown in fig. 1, the power supply circuit of the intelligent driving assistance system includes: a first power management integrated circuit 100, a first power supply sub-circuit 200, a third power management integrated circuit 300, a second power supply sub-circuit 400, and a second power management integrated circuit 500.
The first power management integrated circuit 100 is configured to meet a power requirement of the first processor, and cut off an input power of the first processor when a fault of the first processor is identified; the second power management integrated circuit 500 is used for meeting the power requirement of the second processor and cutting off the input power of the second processor when recognizing that the second processor has a fault; the third power management integrated circuit 300 is used for meeting the power requirement of the load and cutting off the input power of the load when recognizing that the load has a fault; the first power supply sub-circuit 200 is respectively connected to the first power management integrated circuit 100 and the third power management integrated circuit 300, and is configured to supply power to the first processor and the load; the second power supply sub-circuit 400 is connected to the second power management integrated circuit 500 and the third power management integrated circuit 300 respectively, and is used for supplying power to the second processor and the load, wherein the first power supply sub-circuit 200 and the second power supply sub-circuit 400 are independent from each other and are redundant power supplies.
It can be understood that, in order to solve the problem of system failure caused by the power supply problem of the intelligent driving assistance system controller, the first power supply sub-circuit 200 and the second power supply sub-circuit 400 are adopted in the embodiment of the present application, and the two power supply inputs are from different power supplies, which are independent from each other and do not have common cause failure.
In the embodiment of the present application, a plurality of Power Management Integrated Circuits (PMICs) convert an input voltage into a plurality of voltages with different levels, so as to meet the power requirement of a next-stage load. Meanwhile, the input voltage is collected, faults such as overvoltage, undervoltage, overcurrent and the like are identified, and an input power supply is cut off when the faults occur; and monitoring each path of output voltage, identifying faults such as overvoltage, undervoltage, overcurrent and drift and the like, and shutting off an output path.
In one embodiment of the present application, the first power supply sub-circuit 200 includes: the device comprises a first power supply, a first switch and a first power supply management module.
The first switch is used for controlling the connection or disconnection of the first power supply and the power supply circuit; the first power supply management module is used for enabling or disconnecting the first switch according to the voltage of the collected first power supply, enabling the first switch if the voltage of the first power supply meets the enabling condition, and otherwise disconnecting the first switch.
The first power supply sub-circuit of the embodiment of the application includes a first power supply (main power supply), as shown in fig. 2, the main power supply is input into the intelligent driving assistance controller through the inter-board connector by a wire harness, and the first switch (primary power supply switch 1) is used for switching control of the power supply. The power supply voltage of the first power supply management module (SBC 1) chip is from a main power supply, and the voltage input range is larger than the upper and lower limits of the level set by the specified main power supply.
Further, the embodiment of the application can monitor the quality of the main power supply by acquiring the voltage of the input point of the main power supply through the SBC1, and when the input voltage of the main power supply exceeds the working voltage range of the SBC1, the SBC1 does not work and the primary power switch 1 is not enabled; the primary power switch 1 is in an off state, thereby cutting off the main power supply and avoiding the fault of the intelligent driving assistance system controller due to the power failure. When the input voltage of the main power supply is within the working range of the SBC1 and exceeds the set upper and lower limit ranges of the main power supply level, the SBC1 is electrified to complete the BIST (built-in self-test) test, and the latent fault is covered. SBC1 collects the input voltage of the main power supply and does not enable the primary power switch 1; the primary power switch 1 is in an off state, thereby cutting off the primary power supply and avoiding a failure that affects the secondary power supply PMIC due to a power failure.
In the actual execution process, the SBC1 collects the voltage parameter input by the main power supply, and compares the voltage parameter with the upper and lower limits of the set level through the internal comparator. Within the prescribed parameters, the primary power switch 1 is turned on to allow the main power supply voltage to flow to the secondary power supply PMIC. As shown in fig. 2, when the primary power switch 1 is turned on, the PMIC1 is powered on, and the PMIC1 is powered on to perform BIST test, covering latent faults. After completing the BIST test, PMIC1 inputs power (part) to MCU 1. At this time, the MCU1 needs to perform power-on self-test, and after the self-test is completed, the power management module of the MCU1 is turned on. The MCU1 power management module will enable other power management modules of the main control domain, such as other parts of the PMIC1 that supply power to the MCU1, PMIC2 and PMIC3, etc., through GPIO (General-purpose input/output).
In one embodiment of the present application, the second power supply sub-circuit comprises: a second power supply; the second switch is used for controlling the connection or disconnection of the second power supply and the power supply circuit; and the second power supply management module is used for collecting the voltage of the second power supply and enabling or disconnecting the second switch according to the voltage. And enabling the second switch if the voltage of the second power supply meets the enabling condition, and otherwise disconnecting the second switch.
In the embodiment of the present application, the second power supply (redundant power supply) is consistent with the first power supply (main power supply) in terms of specification parameters, only two different power supplies are input to be distinguished, the control logic is as shown in fig. 3, the redundant power supply is input into the intelligent driving auxiliary controller through the inter-board connector by a wire harness, and the second switch (primary power switch 2) is used for switching control of the power supply. The power supply voltage of the second power supply management module (SBC 2) chip is from a redundant power supply, and the voltage input range is larger than the upper and lower limits of the level set by the specified redundant power supply.
Further, the embodiment of the application can monitor the quality of the redundant power supply by acquiring the voltage of the input point of the redundant power supply through the SBC2, and when the input voltage of the redundant power supply exceeds the working voltage range of the SBC 2. SBC2 does not work, and the primary power switch 2 is not enabled; the primary power switch 2 is in an off state, so that the redundant power supply is cut off to avoid the fault of the intelligent driving assistance system controller due to the influence of power failure. When the input voltage of the redundant power supply is within the operating range of SBC2 and exceeds the set upper and lower limits of the redundant power supply level. SBC2 powers up to complete the BIST test, covering latent faults. SBC2 collects the input voltage of the redundant power supply and does not enable the primary power switch 2; the primary power switch 2 is in an off state, thereby cutting off the redundant power supply and avoiding the fault of the secondary power supply PMIC caused by the power failure.
In the actual execution process, SBC2 collects the voltage parameters input by the redundant power supply, and compares the voltage parameters with the upper and lower limits of the set level through the internal comparator. Within the specified parameters, the primary power switch 2 is opened to allow the redundant power supply voltage to flow to the secondary power supply PMIC. As shown in fig. 3, when the primary power switch 2 is turned on, the PMIC4 is powered on to perform the BIST test, the latent fault is covered, and after the BIST test is completed, the PMIC4 inputs a power supply (part of) to the MCU 2. At this time, the MCU2 needs to perform power-on self-test, and after the self-test is completed, the power management module of the MCU2 is turned on. The MCU2 power management module will enable other power management modules of the main control domain, such as other parts of the PMIC4 that power MCU2, through GPIO.
In summary, as shown in fig. 4, in the embodiment of the present application, after the main power source fails, the redundant power source is switched to supply power to the next stage of load; and on the contrary, when the redundant power supply fails, the main power supply is switched to supply power for the next-stage load.
In an embodiment of the present application, the power supply circuit of the embodiment of the present application further includes: a third power management module and a fourth power management module.
The third power management module is used for managing the power connection or disconnection of the first processor, and the fourth power management module is used for managing the power connection or disconnection of the second processor.
It can be understood that, in the use process, the secondary power management chip PMIC collects the power supply output by each path, diagnoses faults including overvoltage, undervoltage, overcurrent drift and the like, cuts off the power supply output after the faults are diagnosed, and outputs fault codes. The controller transmits the fault to the redundant controller, and the redundant controller takes over.
In the actual execution process, when the first power management integrated circuit 100 does not meet the load requirement of the first processor, it is recognized that the first processor fails, and in this case, the embodiment of the present application may use the third power management module to cut off the input power of the first processor, otherwise, the power is normally accessed; when the second power management integrated circuit 500 fails to meet the power requirement of the second processor and a fault is diagnosed, the fourth power management module cuts off the input power of the first processor, otherwise, the power is normally switched on.
According to the power supply circuit of the intelligent driving auxiliary system, two paths of power supplies which are independently input to the first power supply sub-circuit and the second power supply sub-circuit are adopted, when the power supply in one path fails, the other path is switched to supply power for the next-stage load, and therefore the fault of the intelligent driving auxiliary system controller caused by the failure of the power supply is avoided; the input voltage is converted into the multi-path voltages with different levels by combining the power management integrated circuit, the power supply requirement of the subordinate load is met, and when the fault is identified, the input power supply is cut off in time, so that the safety of the circuit is protected. Therefore, the problem that the power supply or the load is cut off when the power supply is abnormal and the failure of an internal circuit and a device can cause the failure of the integral controller in the related art is solved.
Next, an intelligent driving assistance system proposed according to an embodiment of the present application is described with reference to the drawings.
Fig. 5 is a block diagram schematically illustrating an intelligent driving assistance system according to an embodiment of the present application.
As shown in fig. 5, the intelligent driving assistance system 20 includes: a power supply circuit 10 of the intelligent driving assistance system, a first processor 600 and a second processor 700.
The power circuit comprises mutually independent and redundant power supplies, and the power supplies are used for respectively supplying power to the first processor, the second processor and the load.
In one embodiment of the present application, the first processor and the second processor are associated with redundancy.
It should be noted that the foregoing explanation of the power supply circuit embodiment of the intelligent driving assistance system is also applicable to the intelligent driving assistance system of this embodiment, and is not repeated here.
According to the intelligent driving auxiliary system provided by the embodiment of the application, the power circuit of the intelligent driving auxiliary system comprises mutually independent and mutually redundant power supplies which are respectively used for supplying power to the first processor, the second processor and the load, so that the fault of the intelligent driving auxiliary system controller caused by the power failure is avoided, the input power supply is timely cut off when the fault is identified, and the safety of the circuit is protected. Therefore, the problem that the power supply or the load is cut off when the power supply is abnormal and the failure of an internal circuit and a device can cause the failure of the integral controller in the related art is solved.
In addition, the embodiment of the application provides a vehicle, which comprises the intelligent driving assistance system.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "N" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A power supply circuit for an intelligent driving assistance system, the intelligent driving assistance system comprising a first processor and a second processor that are redundant of each other, wherein the circuit comprises:
the first power management integrated circuit is used for meeting the power requirement of the first processor and cutting off the input power supply of the first processor when the first processor is identified to have a fault;
the second power management integrated circuit is used for meeting the power requirement of the second processor and cutting off the input power supply of the second processor when the second processor is identified to have a fault;
the third power management integrated circuit is used for meeting the power supply requirement of a load and cutting off the input power supply of the load when the load is identified to have a fault;
a first power supply sub-circuit, coupled to the first power management integrated circuit and the third power management integrated circuit, respectively, for supplying power to the first processor and the load;
and the second power supply sub-circuit is respectively connected with the second power supply management integrated circuit and the third power supply management integrated circuit and is used for supplying power to the second processor and the load, wherein the first power supply sub-circuit and the second power supply sub-circuit are mutually independent and are mutually redundant power supplies.
2. The power supply circuit of claim 1, wherein the first power supply sub-circuit comprises:
a first power supply;
the first switch is used for controlling the connection or disconnection of the first power supply and the power supply circuit;
and the first power supply management module is used for collecting the voltage of the first power supply and enabling or disconnecting the first switch according to the voltage.
3. The power supply circuit of claim 2, wherein the first switch is enabled if the first power supply voltage meets an enable condition, and wherein the first switch is otherwise turned off.
4. The power supply circuit of claim 1, wherein the second power supply sub-circuit comprises:
a second power supply;
the second switch is used for controlling the second power supply to be connected with or disconnected from the power supply circuit;
and the second power supply management module is used for collecting the voltage of the second power supply and enabling or disconnecting the second switch according to the voltage.
5. The power supply circuit according to claim 4, wherein the second switch is enabled if the voltage of the second power supply satisfies an enable condition, and otherwise the second switch is turned off.
6. The power supply circuit of claim 1, further comprising:
and the third power supply management module is used for managing the power supply connection or disconnection of the first processor.
7. The power supply circuit according to claim 1, further comprising:
and the fourth power management module is used for managing the connection or disconnection of the power supply of the second processor.
8. An intelligent driving assistance system, comprising:
a first processor and a second processor;
the power circuit of the intelligent driving assistance system of any one of claims 1 to 7, wherein the power circuit includes power sources that are independent of each other and redundant of each other, and the power sources are used to supply power to the first processor, the second processor, and the load, respectively.
9. The system of claim 8, wherein the first processor and the second processor are redundant in relation.
10. A vehicle characterized by comprising the intelligent driving assistance system according to claim 8 or 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211511968.1A CN115817382A (en) | 2022-11-29 | 2022-11-29 | Power supply circuit of intelligent driving auxiliary system, intelligent driving auxiliary system and vehicle |
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| CN202211511968.1A CN115817382A (en) | 2022-11-29 | 2022-11-29 | Power supply circuit of intelligent driving auxiliary system, intelligent driving auxiliary system and vehicle |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006246616A (en) * | 2005-03-03 | 2006-09-14 | Nec Corp | Uninterruptible power supply |
| CN104246629A (en) * | 2012-10-02 | 2014-12-24 | 富士电机株式会社 | Redundant computation processing system |
| US20150035358A1 (en) * | 2013-08-05 | 2015-02-05 | Ragingwire Data Centers, Inc. | Electrical power management system and method |
| US20160181862A1 (en) * | 2013-09-27 | 2016-06-23 | Hewlett Packard Enterprise Development Lp | Energizing a power supply in response to a disablement of a relay |
| KR20200110956A (en) * | 2019-03-18 | 2020-09-28 | 주식회사 만도 | Redundancy system of vehicle and, apparatus and method for supplying power thereof |
| CN112193183A (en) * | 2020-09-28 | 2021-01-08 | 长城汽车股份有限公司 | Isolation component, autonomous vehicle redundancy architecture and isolation component control method |
| CN112428983A (en) * | 2019-08-09 | 2021-03-02 | 中车时代电动汽车股份有限公司 | Hybrid power system and control method thereof |
| KR102242061B1 (en) * | 2020-02-06 | 2021-04-20 | 주식회사 경신 | Apparatus for controlling for power of autonomous driving vehicle |
| US20220017108A1 (en) * | 2018-12-26 | 2022-01-20 | Hitachi Astemo, Ltd. | In-vehicle control system |
| KR20220032362A (en) * | 2020-09-07 | 2022-03-15 | 현대자동차주식회사 | Power control apparatus in autonomous vehicle and method for monitering power status thereof |
| CN115042801A (en) * | 2022-06-28 | 2022-09-13 | 岚图汽车科技有限公司 | Intelligent cruise auxiliary redundancy control method and system |
-
2022
- 2022-11-29 CN CN202211511968.1A patent/CN115817382A/en not_active Withdrawn
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006246616A (en) * | 2005-03-03 | 2006-09-14 | Nec Corp | Uninterruptible power supply |
| CN104246629A (en) * | 2012-10-02 | 2014-12-24 | 富士电机株式会社 | Redundant computation processing system |
| US20150035358A1 (en) * | 2013-08-05 | 2015-02-05 | Ragingwire Data Centers, Inc. | Electrical power management system and method |
| US20160181862A1 (en) * | 2013-09-27 | 2016-06-23 | Hewlett Packard Enterprise Development Lp | Energizing a power supply in response to a disablement of a relay |
| US20220017108A1 (en) * | 2018-12-26 | 2022-01-20 | Hitachi Astemo, Ltd. | In-vehicle control system |
| KR20200110956A (en) * | 2019-03-18 | 2020-09-28 | 주식회사 만도 | Redundancy system of vehicle and, apparatus and method for supplying power thereof |
| CN112428983A (en) * | 2019-08-09 | 2021-03-02 | 中车时代电动汽车股份有限公司 | Hybrid power system and control method thereof |
| KR102242061B1 (en) * | 2020-02-06 | 2021-04-20 | 주식회사 경신 | Apparatus for controlling for power of autonomous driving vehicle |
| KR20220032362A (en) * | 2020-09-07 | 2022-03-15 | 현대자동차주식회사 | Power control apparatus in autonomous vehicle and method for monitering power status thereof |
| CN112193183A (en) * | 2020-09-28 | 2021-01-08 | 长城汽车股份有限公司 | Isolation component, autonomous vehicle redundancy architecture and isolation component control method |
| CN115042801A (en) * | 2022-06-28 | 2022-09-13 | 岚图汽车科技有限公司 | Intelligent cruise auxiliary redundancy control method and system |
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