A smart power distribution box and a vehicle

Abstract

This invention relates to an intelligent power distribution box and a vehicle. The intelligent power distribution box, installed in the vehicle, includes a main control chip, a lighting controller connected to the main control chip, LED beads connected to the main control chip, and a power supply circuit connected to the main control chip. The lighting controller includes an analog drive circuit and a digital control circuit. The main control chip controls the power supply circuit to turn on and off. The main control chip also controls the analog drive circuit to provide constant current power to the LED beads through redundant computing power. Furthermore, the main control chip controls the digital control circuit to collect voltage and / or current signals through redundant computing power, and determines whether the vehicle is in normal operating condition based on the voltage and / or current signals. This effectively utilizes the redundant computing power of the main control chip, improves the integration of the controller, and reduces the overall vehicle cost.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an intelligent power distribution box and a vehicle. Background Technology

[0002] In existing technologies, the smart power distribution box solutions used in vehicles employ a main control chip with powerful computing capabilities. However, the computing power required by the main control chip to monitor and determine current and voltage is often very small, and a large amount of redundant computing power of the main control chip remains unused. Summary of the Invention

[0003] The present invention provides an intelligent power distribution box and a vehicle to solve the problem that the main control chip used in the intelligent power distribution box has powerful computing power, but the computing power required by the main control chip to monitor and determine current and voltage is often very small, and the main control chip has a large amount of redundant computing power that is not used.

[0004] This invention discloses an intelligent power distribution box, which is installed in a vehicle and includes a main control chip, a light controller connected to the main control chip, LED beads connected to the main control chip, and a power supply circuit connected to the main control chip; wherein, the light controller includes an analog drive circuit and a digital control circuit.

[0005] The main control chip is used to control the power supply circuit to turn on and off;

[0006] The main control chip is also used to control the analog drive circuit to provide constant current power to the LED beads through redundant computing power;

[0007] The main control chip is also used to control the digital control circuit to collect voltage signals and / or current signals through redundant computing power, and to determine whether the vehicle is in normal working condition based on the voltage signals and / or current signals.

[0008] Optionally, the intelligent power distribution box further includes an electronic switch;

[0009] The main control chip is specifically used to control the power supply circuit to turn on and off by controlling the electronic switch.

[0010] Optionally, the vehicle further includes a DC-DC converter and a battery; a domain controller is connected to the power supply circuit; the domain controller includes a main input terminal and an auxiliary power input terminal; the power supply circuit includes a main circuit connected to the DC-DC converter and a redundant circuit connected to the battery; the main actuator component is connected to the main circuit; the backup actuator component is connected to the redundant circuit; the main circuit and the redundant circuit serve as backups for each other.

[0011] The main circuit is connected to the main input terminal of the domain controller and / or the power input terminal of the main actuator component;

[0012] The redundant circuit connects the auxiliary power input terminal of the domain controller and / or the power input terminal of the backup actuator component; the domain controller is used to divide the electronic control unit inside the vehicle into multiple domains and to centrally distribute and manage the functions of the electronic control unit based on the domain; the actuator is used to receive the control signal from the main control chip and control at least one component in the vehicle to perform the corresponding function based on the control signal from the main control chip.

[0013] The domain controller and / or main actuator components control the opening and / or closing of the main circuit relative to the DC converter via electronic switches;

[0014] The domain controller and / or backup actuator components control the opening and / or closing of the redundant circuit relative to the battery via electronic switches;

[0015] The DC converter and the battery are connected by an electronic switch.

[0016] Optionally, the analog drive circuit includes a boost circuit, a buck circuit, a sampling resistor, and a voltage divider resistor;

[0017] The boost circuit is connected to the buck circuit; the boost circuit is connected to the voltage divider resistor, the buck circuit is connected to the sampling resistor, and the voltage divider resistor is connected to ground.

[0018] The digital control circuit acquires the voltage division value on the voltage divider resistor at the output terminal and transmits it to the boost circuit in a negative feedback manner to adjust the duty cycle of the boost circuit and maintain the constant voltage power supply of the boost circuit.

[0019] The digital control circuit acquires the voltage drop across the sampling resistor, which reflects the current magnitude. This voltage drop is transmitted to the step-down circuit via negative feedback to adjust the duty cycle of the step-down circuit and maintain a constant current supply.

[0020] Optionally, the intelligent power distribution box further includes a transceiver, and the vehicle further includes an LED management chip; the transceiver is connected to the main control chip, the LED management chip is connected to the transceiver, and the LED management chip is also connected to the lighting controller;

[0021] The main control chip is also used to control the transceiver to collect the first coordinate information through redundant computing power.

[0022] The main control chip is also used to control the LED management chip to control the LEDs to emit light and / or turn off based on the first coordinate information through redundant computing power.

[0023] Optionally, the main control chip is further configured to control the LED management chip to control the LEDs to emit light and / or turn off based on the first coordinate information using redundant computing power, specifically including:

[0024] The main control chip uses redundant computing power to control the transceiver to transmit the first coordinate information to the digital control circuit.

[0025] The main control chip uses redundant computing power to control the digital control circuit to perform coordinate transformation on the first coordinate information to obtain second coordinate information based on a private protocol; the second coordinate information is used to indicate the position of the LEDs on the LED board.

[0026] The main control chip uses redundant computing power to control the digital control circuit to transmit the second coordinate information to the LED management chip;

[0027] The main control chip uses redundant computing power to control the LED management chip to control the LEDs to emit light and / or turn off based on the second coordinate information.

[0028] Optionally, the vehicle further includes a lighting module and a dimming motor; the dimming motor is connected to the main control chip; the dimming motor is located on the lighting module;

[0029] The lighting module includes a lamp panel, a lens, a plastic housing, and LED chips; the LED chips are located on the lamp panel; the plastic housing and the lens are located on the outside of the lamp panel;

[0030] The main control chip is also used to control the transceiver to collect steering wheel rotation angle information through redundant computing power.

[0031] The main control chip is also used to control the dimming motor to deflect the light beam using redundant computing power.

[0032] Optionally, the dimming motor includes a driver chip, which is connected to the main control chip; the main control chip is further used to control the dimming motor to deflect the light pattern through redundant computing power, specifically including:

[0033] The main control chip uses redundant computing power to control the transceiver to transmit the steering wheel rotation angle information to the main control chip.

[0034] The main control chip calculates the rotation angle of the dimming motor based on the steering wheel rotation angle information using redundant computing power;

[0035] The main control chip transmits the rotation angle information of the dimming motor to the driver chip of the dimming motor through redundant computing power;

[0036] The main control chip uses redundant computing power to control the driver chip of the dimming motor to drive the dimming motor to rotate based on the rotation angle information.

[0037] Optionally, the smart power distribution box is located in the front compartment of the vehicle.

[0038] This invention also discloses a vehicle, which includes the intelligent power distribution box as described in any of the preceding embodiments.

[0039] This invention relates to an intelligent power distribution box and a vehicle. The intelligent power distribution box, installed in the vehicle, includes a main control chip, a lighting controller connected to the main control chip, LED beads connected to the main control chip, and a power supply circuit connected to the main control chip. The lighting controller includes an analog drive circuit and a digital control circuit. The main control chip controls the power supply circuit to turn on and off. The main control chip also controls the analog drive circuit to provide constant current power to the LED beads through redundant computing power. Furthermore, the main control chip controls the digital control circuit to collect voltage and / or current signals through redundant computing power, and determines whether the vehicle is in normal operating condition based on these signals. This effectively utilizes the redundant computing power of the main control chip, improving the controller's integration and reducing the overall vehicle cost. The main control chip also achieves anti-glare and adaptive steering functions through redundant computing power, preventing glare from pedestrians and vehicles at night and ensuring that the light emitted by the lighting module turns in sync with the steering wheel, providing a better driving experience for the user. Attached Figure Description

[0040] Figure 1 This is an example of an intelligent power distribution box provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the structure of an intelligent power distribution box provided in an embodiment of the present invention. Detailed Implementation

[0042] To make the above-mentioned objectives, technical solutions and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0044] Reference Figure 1 This illustration shows an intelligent power distribution box provided in an embodiment of the present invention. The intelligent power distribution box is installed in a vehicle and includes a main control chip, a light controller connected to the main control chip, LED beads connected to the main control chip, and a power supply circuit connected to the main control chip; wherein, the light controller includes an analog drive circuit and a digital control circuit.

[0045] The main control chip is used to control the power supply circuit to turn on and off;

[0046] The main control chip is also used to control the analog drive circuit to provide constant current power to the LED beads through redundant computing power;

[0047] The main control chip is also used to control the digital control circuit to collect voltage signals and / or current signals through redundant computing power, and to determine whether the vehicle is in normal working condition based on the voltage signals and / or current signals.

[0048] In this embodiment of the invention, the main control chip is located in the intelligent power distribution box, which is located in the vehicle. The intelligent power distribution box is used to monitor the voltage and current in real time, and its ASIL safety level reaches level D. The ASIL level is the vehicle safety integrity level, which reflects the safety and reliability of the vehicle.

[0049] The intelligent power distribution box includes a power supply circuit; this circuit is used to transmit and convert electrical energy, as well as to transmit and process signals. The main control chip controls the opening and closing of the power supply circuit; the intelligent power distribution box monitors and judges voltage and current in real time by controlling the opening and closing of the power supply circuit through the main control chip located within the box.

[0050] In this embodiment of the invention, since the ASIL level of the smart power distribution box reaches level D, the main control chip can be selected as one main control chip with an ASIL level of level D, or two main control chips with an ASIL level of level B.

[0051] The main control chips used in intelligent power distribution boxes often have powerful computing capabilities, with a single main control chip capable of processing over 300KB of computing power. In this embodiment of the invention, if a single main control chip with an ASIL level of D is used, its computing power can reach over 300KB; if two main control chips with an ASIL level of B are used, the total computing power of the main control chips can reach over 600KB. However, the computing power required by the main control chip to control the opening and closing of the power supply circuit is less than 10KB, indicating that the main control chip has a large amount of redundant computing power.

[0052] In this embodiment of the invention, the lighting controller includes an analog drive circuit and a digital control circuit; wherein, the analog drive circuit is used to provide constant current power to the LED beads, and the digital control circuit can adopt an MCO chip, which is used to collect voltage signals and / or current signals, and to determine whether the vehicle is in normal working condition based on the voltage signals and / or current signals.

[0053] The main control chip has a large amount of redundant computing power. This redundant computing power controls the analog drive circuit to provide constant current power to the LED chips, ensuring consistent brightness levels. The main control chip can also use its redundant computing power to control the digital control circuit to collect voltage and / or current signals, and based on these signals, determine whether the vehicle is in normal operating condition. This effectively utilizes the redundant computing power of the main control chip, improving the controller's integration and reducing the overall vehicle cost.

[0054] Furthermore, in any of the above embodiments, the intelligent power distribution box further includes an electronic switch;

[0055] The main control chip is specifically used to control the power supply circuit to turn on and off by controlling the electronic switch.

[0056] In this embodiment of the invention, the intelligent power distribution box is a functional safety component for power management and distribution in the vehicle. It uses electronic switches to replace traditional fuses, thereby improving the vehicle's safety performance.

[0057] The power supply circuit in the intelligent distribution box includes a main circuit and a redundant circuit. The main circuit is connected to a DC-DC converter, which can be a DC-DC converter, to convert the DC power output from the high-voltage battery into the DC power required by the low-voltage electronic system. The redundant circuit is connected to the battery and supplies power to the vehicle in the event of a failure in the main circuit or the DC-DC converter.

[0058] The main circuit includes electronic switches, see [link / reference] Figure 2 Electronic switches 2 and 4 are included; redundant circuits also include electronic switches, see [link to documentation]. Figure 2 Electronic switches 3, 5, and 6 are used to control the opening and closing of the power supply circuit, that is, to control the opening and closing of the main circuit and the redundant circuit.

[0059] In this embodiment of the invention, the digital control circuit collects voltage signals and / or current signals, and determines whether the vehicle is in normal working condition based on the voltage signals and / or current signals. If the vehicle is not in normal working condition, the electronic switch is turned off.

[0060] In this embodiment of the invention, an electronic switch is used to replace a traditional fuse. When the digital control circuit determines that the vehicle is not in a normal working state based on voltage and / or current signals, the electronic switch is turned off, thereby improving the vehicle's safety performance.

[0061] Furthermore, in any of the above embodiments, the vehicle further includes a DC-DC converter and a battery; a domain controller is connected to the power supply circuit; the domain controller includes a main input terminal and an auxiliary power input terminal; the power supply circuit includes a main circuit connected to the DC-DC converter and a redundant circuit connected to the battery; the main actuator component is connected to the main circuit; the backup actuator component is connected to the redundant circuit; the main circuit and the redundant circuit serve as backups for each other.

[0062] The main circuit is connected to the main input terminal of the domain controller and / or the power input terminal of the main actuator component;

[0063] The redundant circuit connects the auxiliary power input terminal of the domain controller and / or the power input terminal of the backup actuator component; the domain controller is used to divide the electronic control unit inside the vehicle into multiple domains and to centrally distribute and manage the functions of the electronic control unit based on the domain; the actuator is used to receive the control signal from the main control chip and control at least one component in the vehicle to perform the corresponding function based on the control signal from the main control chip.

[0064] The domain controller and / or main actuator components control the opening and / or closing of the main circuit relative to the DC converter via electronic switches;

[0065] The domain controller and / or backup actuator components control the opening and / or closing of the redundant circuit relative to the battery via electronic switches;

[0066] The DC converter and the battery are connected by an electronic switch.

[0067] In this embodiment of the invention, the power supply circuit in the intelligent distribution box includes a main circuit and a redundant circuit;

[0068] The main circuit is connected to a DC-DC converter, which can be a DC-DC converter. The DC-DC converter is used to convert the DC power output from the high-voltage battery into the DC power required by the low-voltage electronic system. The redundant circuit is connected to the battery to power the vehicle.

[0069] The main circuit and the redundant circuit serve as backups for each other; if one of the main circuit and the redundant circuit fails, the other circuit continues to supply power to the vehicle, thus avoiding affecting the normal starting and operation of the vehicle.

[0070] In this embodiment of the invention, the main circuit connects the main input terminal of the domain controller and / or the power input terminal of the main actuator component; the domain controller is used to divide the vehicle's internal electronic control unit into multiple domains and to centrally distribute and manage the functions of the electronic control unit based on the domains; the actuator is used to receive control signals from the main control chip and, based on the control signals from the main control chip, control at least one component in the vehicle to perform corresponding functions. This embodiment of the invention includes multiple components, such as headlights, sunroof, power doors, tailgate, and windshield wipers.

[0071] The redundant loop connects the auxiliary power input terminal of the domain controller and / or the power input terminal of the backup actuator component; in this embodiment of the invention, multiple domain controllers are included, each of which includes a main input terminal and an auxiliary power input terminal. The main input terminal and the auxiliary power input terminal serve as backups for each other. If one loop fails, the other loop connected to the power input terminal of the domain controller continues to supply power to the vehicle, thus avoiding affecting the normal starting and operation of the vehicle.

[0072] The present invention includes multiple backup actuator components, which are used in the event of a problem in the main circuit to ensure the normal operation of the vehicle.

[0073] The domain controller and / or main actuator components control the opening and / or closing of the main circuit relative to the DC-DC converter via an electronic switch; in this embodiment of the invention, the electronic switch has an ASIL level of B, and the DC-DC converter can be a DC-DC converter with an ASIL level of B; since the smart distribution box has an ASIL level of D, only one ASIL level B electronic switch is used to control the domain controller and / or main actuator components with the DC-DC converter, see [link to relevant documentation]. Figure 2 Electronic switches 2 and 4 are included.

[0074] The domain controller and / or backup actuator components control the opening and / or closing of redundant circuits relative to the battery via electronic switches. In this embodiment, the electronic switches have an ASIL rating of B, while the battery does not exhibit an ASIL rating. Since the smart distribution box has an ASIL rating of D, the domain controller and / or backup actuator components are controlled by two ASIL-B level electronic switches. See [link to relevant documentation]. Figure 2 Electronic switches 3, 5 and 6 are included.

[0075] In this embodiment of the invention, since the ASIL level of the DC-DC converter reaches level B, only one ASIL level B electronic switch is used to control the domain controller and / or main actuator components with the DC-DC converter; the battery does not reflect an ASIL level, and two ASIL level B electronic switches are used to control the domain controller and / or backup actuator components with the battery, thus ensuring the safety and reliability of the vehicle.

[0076] The DC-DC converter and the battery are connected via an electronic switch to ensure that their operation does not interfere with each other. (See [link to relevant documentation]). Figure 2 Electronic switch 1 in the middle.

[0077] In this embodiment of the invention, the DC-DC converter is connected to the main circuit, and the battery is connected to the redundant circuit, with the main circuit and the redundant circuit serving as backups for each other. The DC-DC converter and the battery are connected by an electronic switch to ensure that the operation of the DC-DC converter and the battery will not affect each other. For example, when a fault occurs in the main circuit, the electronic switch between the DC-DC converter and the battery is turned off to prevent the DC-DC converter from affecting the operation of the battery, thereby improving the safety and reliability of the vehicle.

[0078] Furthermore, in any of the above embodiments, the analog driving circuit includes a boost circuit, a buck circuit, a sampling resistor, and a voltage divider resistor;

[0079] The boost circuit is connected to the buck circuit; the boost circuit is connected to the voltage divider resistor, the buck circuit is connected to the sampling resistor, and the voltage divider resistor is connected to ground.

[0080] The digital control circuit acquires the voltage division value on the voltage divider resistor at the output terminal and transmits it to the boost circuit in a negative feedback manner to adjust the duty cycle of the boost circuit and maintain the constant voltage power supply of the boost circuit.

[0081] The digital control circuit acquires the voltage drop across the sampling resistor, which reflects the current magnitude. This voltage drop is transmitted to the step-down circuit via negative feedback to adjust the duty cycle of the step-down circuit and maintain a constant current supply.

[0082] In this embodiment of the invention, the analog driving circuit includes a boost circuit, a buck circuit, a sampling resistor, and a voltage divider resistor; wherein the boost circuit and the buck circuit are connected to provide constant current power to the LED beads, so that the brightness level of the LED beads remains consistent.

[0083] The boost circuit is connected to the voltage divider resistor. The voltage value of the voltage divider resistor at the output terminal is collected by the digital control circuit and transmitted to the boost circuit in a negative feedback manner to adjust the duty cycle of the boost circuit and maintain the constant voltage power supply of the boost circuit, so as to provide a sufficiently wide margin for realizing functions such as light flashing.

[0084] The step-down circuit is connected to the sampling resistor. The voltage drop across the sampling resistor is collected by the digital control circuit. The voltage drop reflects the current magnitude and is transmitted to the step-down circuit in a negative feedback manner to adjust the duty cycle of the step-down circuit, maintain the constant current power supply of the step-down circuit, and keep the brightness level of the lamp beads consistent.

[0085] Furthermore, in any of the above embodiments, the intelligent power distribution box further includes a transceiver, and the vehicle further includes an LED management chip; the transceiver is connected to the main control chip, the LED management chip is connected to the transceiver, and the LED management chip is also connected to the lighting controller;

[0086] The main control chip is also used to control the transceiver to collect the first coordinate information through redundant computing power.

[0087] The main control chip is also used to control the LED management chip to control the LEDs to emit light and / or turn off based on the first coordinate information through redundant computing power.

[0088] In this embodiment of the invention, the intelligent power distribution box further includes a transceiver and an LED management chip; the transceiver is used to collect first coordinate information; see also Figure 2 The transceiver 1 in the middle; the first coordinate information refers to the coordinate information of vehicles, pedestrians, bicycles, motorcycles and other targets in the same direction and opposite direction on the lane in front of the vehicle; the lighting management chip is used to control the light and / or turn off of the lamp beads.

[0089] The transceiver is connected to the main control chip, and the LED management chip is connected to the transceiver, for transmitting information between the main control chip, the LED management chip and the transceiver respectively; the LED management chip is also connected to the lighting controller, for transmitting information between the LED management chip and the lighting controller.

[0090] In this embodiment of the invention, the main control chip can be a single ASIL D-level chip with a computing power of over 300KB; alternatively, two ASIL B-level chips can be used, resulting in a total computing power of over 600KB. The computing power required for the main control chip to control the power supply circuit's on / off states is less than 10KB, demonstrating significant redundant computing power. The main control chip uses this redundant computing power to control the transceiver to collect coordinate information of vehicles, pedestrians, bicycles, motorcycles, and other objects traveling in the same and opposite directions in the lane ahead of the vehicle. This information is then used to control the LED management chip to control the LEDs' illumination and extinguishing. This effectively utilizes the redundant computing power of the main control chip, improves the controller's integration, and reduces the overall vehicle cost.

[0091] Furthermore, in any of the above embodiments, the main control chip is also used to control the LED management chip to control the LEDs to emit light and / or extinguish light based on the first coordinate information through redundant computing power, specifically including:

[0092] The main control chip uses redundant computing power to control the transceiver to transmit the first coordinate information to the digital control circuit.

[0093] The main control chip uses redundant computing power to control the digital control circuit to perform coordinate transformation on the first coordinate information to obtain second coordinate information based on a private protocol; the second coordinate information is used to indicate the position of the LEDs on the LED board.

[0094] The main control chip uses redundant computing power to control the digital control circuit to transmit the second coordinate information to the LED management chip;

[0095] The main control chip uses redundant computing power to control the LED management chip to control the LEDs to emit light and / or turn off based on the second coordinate information.

[0096] In this embodiment of the invention, the main control chip can be one ASIL level D main control chip, or two ASIL level B main control chips. The main control chip has powerful computing power, while the main control chip requires very little computing power to control the opening and closing of the power supply circuit. The main control chip has a large amount of redundant computing power.

[0097] The vehicle also includes cameras, millimeter-wave radar, and other equipment that can detect and identify the coordinates of vehicles, pedestrians, bicycles, motorcycles, and other objects traveling in the same or opposite direction in the lane in front of the vehicle. The transceiver is used to collect the coordinate information of the objects.

[0098] In this embodiment of the invention, the main control chip uses redundant computing power to control the transceiver to collect the coordinate information of the target object. (See transceiver details). Figure 2Transceiver 1 in the middle; the main control chip uses redundant computing power to control the transceiver to transmit the coordinate information of the target object to the digital control circuit. See transceiver for details. Figure 2 Transceiver 2 in the middle;

[0099] In this embodiment of the invention, the LED beads can be located on the lamp board to form an LED bead matrix;

[0100] The main control chip uses redundant computing power to control the digital control circuit to perform coordinate transformation on the coordinate information of the target object, and obtains second coordinate information based on a private protocol; the second coordinate information is used to indicate the position of the lamp beads on the lamp board.

[0101] The main control chip transmits the second coordinate information to the LED management chip through redundant computing power control of the digital control circuit; the LED management chip is used to control the LEDs to emit light and / or turn off.

[0102] The main control chip uses redundant computing power to control the LED management chip to control the LEDs to emit light and / or turn off, thereby achieving the anti-glare function and preventing glare from pedestrians and vehicles at night.

[0103] In this embodiment of the invention, the vehicle's camera and millimeter-wave radar detect the positions of vehicles traveling in the same direction and oncoming traffic, as well as the coordinates of objects such as people, bicycles, and motorcycles in the lane ahead. The main control chip uses redundant computing power to control the transceiver to collect the coordinate information of the objects. The main control chip then uses the redundant computing power to control the transceiver to transmit the coordinate information of the objects to the headlight controller. The main control chip also uses redundant computing power to control the headlight controller to convert the coordinate information of the objects into second coordinate information based on a proprietary protocol. The second coordinate information based on the proprietary protocol corresponds to the LEDs on the LED matrix. The main control chip uses redundant computing power to control the digital control circuit to transmit the second coordinate information based on the proprietary protocol to the LED management chip. The LED management chip uses the redundant computing power of the main control chip to control the lighting and / or extinguishing of the lights based on the second coordinate information, achieving an anti-glare function and preventing glare from pedestrians and vehicles at night, providing users with a good driving experience. It also effectively utilizes the redundant computing power of the main control chip, improves the integration of the controller, and reduces the overall vehicle cost.

[0104] Furthermore, in any of the above embodiments, the vehicle further includes a lighting module and a dimming motor; the dimming motor is connected to the main control chip; the dimming motor is located on the lighting module;

[0105] The lighting module includes a lamp panel, a lens, a plastic housing, and LED chips; the LED chips are located on the lamp panel; the plastic housing and the lens are located on the outside of the lamp panel;

[0106] The main control chip is also used to control the transceiver to collect steering wheel rotation angle information through redundant computing power.

[0107] The main control chip is also used to control the dimming motor to deflect the light beam using redundant computing power.

[0108] In this embodiment of the invention, the vehicle also includes a lighting module and a dimming motor; the dimming motor is connected to the main control chip and is used to transmit information; the dimming motor is located on the lighting module, and the rotation of the dimming motor can deflect the light pattern of the lighting module.

[0109] In this embodiment of the invention, the lighting module includes a lamp panel, a lens, a plastic housing, and LED beads. The LED beads are located on the lamp panel, and the lamp panel is covered by a plastic housing and a lens to protect the lamp panel and LED beads from damage. The transceiver is also used to collect steering wheel rotation angle information.

[0110] In this embodiment of the invention, the main control chip can be a single ASIL D-level chip, or two ASIL B-level chips. The main control chip possesses powerful computing capabilities, while requiring minimal computing power to control the power supply circuit's on / off state; thus, it exhibits significant redundant computing power. This redundant computing power is utilized to control the transceiver to collect steering wheel rotation angle information. (See transceiver details provided.) Figure 2 The transceiver 1 in the system; the main control chip controls the dimming motor through redundant computing power to deflect the light pattern of the light mold, effectively utilizing the redundant computing power of the main control chip, improving the integration of the controller, and reducing the overall vehicle cost.

[0111] Furthermore, in any of the above embodiments, the dimming motor includes a driver chip, which is connected to the main control chip; the main control chip is also used to control the dimming motor to deflect the light beam shape through redundant computing power, specifically including:

[0112] The main control chip uses redundant computing power to control the transceiver to transmit the steering wheel rotation angle information to the main control chip.

[0113] The main control chip calculates the rotation angle of the dimming motor based on the steering wheel rotation angle information using redundant computing power;

[0114] The main control chip transmits the rotation angle information of the dimming motor to the driver chip of the dimming motor through redundant computing power;

[0115] The main control chip uses redundant computing power to control the driver chip of the dimming motor to drive the dimming motor to rotate based on the rotation angle information.

[0116] In this embodiment of the invention, the dimming motor includes a driver chip, which is connected to the main control chip and is used to transmit information; the transceiver is also used to collect steering wheel rotation angle information.

[0117] In this embodiment of the invention, the main control chip can be one ASIL level D main control chip, or two ASIL level B main control chips. The main control chip has powerful computing power, while the main control chip requires very little computing power to control the opening and closing of the power supply circuit. The main control chip has a large amount of redundant computing power.

[0118] The main control chip uses redundant computing power to control the transceiver to collect steering wheel rotation angle information and transmits the steering wheel rotation angle information back to the main control chip. (See transceiver details...) Figure 2 Transceiver 1 in the middle;

[0119] To achieve the effect of the light emitted by the lighting mold turning in sync with the steering wheel, the main control chip uses redundant computing power to calculate the angle that the dimming motor needs to rotate based on the steering wheel rotation angle information and the dimming constant conversion.

[0120] The main control chip also uses redundant computing power to control the main control chip to transmit the rotation angle information of the dimming motor to the driver chip of the dimming motor;

[0121] The driver chip of the dimming motor uses the redundant computing power of the main control chip to control the rotation of the dimming motor, thereby realizing the function of following the steering wheel and achieving the function of the light emitted by the lamp mold turning together with the steering wheel.

[0122] In this embodiment of the invention, the main control chip uses redundant computing power to control the transceiver to collect steering wheel rotation angle information and controls the transceiver to transmit the steering wheel rotation angle information to the main control chip. Based on the steering wheel rotation angle information, the main control chip uses redundant computing power to calculate the required rotation angle of the dimming motor through dimming constant conversion, and transmits the dimming motor rotation angle information to the dimming motor driver chip. The dimming motor driver chip uses the redundant computing power of the main control chip to control the dimming motor to rotate, realizing the follow-steering function, so that the light emitted by the light mold turns with the steering wheel, improving the user's driving experience. At the same time, it effectively utilizes the redundant computing power of the main control chip, improves the integration of the controller, and reduces the overall vehicle cost.

[0123] Furthermore, in any of the above embodiments, the smart power distribution box is located in the front compartment of the vehicle.

[0124] In this embodiment of the invention, the intelligent power distribution box is arranged in the front compartment of the vehicle according to its physical location. On the one hand, the arrangement in the front compartment of the vehicle is located in the air intake path of the grille, which facilitates heat dissipation; on the other hand, since the DC converter and the battery are generally located in the front compartment of the vehicle, the wiring harness length can be reduced, the timeliness of the drive can be improved, and the heat generation can be reduced.

[0125] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0126] The present invention also provides a vehicle comprising the intelligent power distribution box as described in any of the preceding claims.

[0127] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0128] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0129] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0130] The present invention has been described in detail above, including an intelligent power distribution box and a vehicle. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will know that there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A smart power distribution box, characterized in that, The intelligent power distribution box is installed in the vehicle and has an ASIL safety level of D. The intelligent power distribution box includes a main control chip, a transceiver connected to the main control chip, a lighting controller connected to the main control chip, LED chips connected to the main control chip, and a power supply circuit connected to the main control chip. The vehicle includes an LED chip management chip, a lighting module, and a dimming motor. The lighting controller includes analog drive circuitry and digital control circuitry. The LED chip management chip is connected to the transceiver and also to the lighting controller. The dimming motor is connected to the main control chip and is located on the lighting module. The main control chip is used to control the power supply circuit to turn on and off; The main control chip is also used to control the analog drive circuit to provide constant current power to the LED beads through redundant computing power; The main control chip is also used to control the digital control circuit to collect voltage signals and / or current signals through redundant computing power, and to determine whether the vehicle is in normal working condition based on the voltage signals and / or current signals, and to turn off the electronic switch when it is determined that the vehicle is not in normal working condition. The main control chip is also used to control the LED management chip to control the LED to emit light and / or turn off based on the first coordinate information collected by the transceiver through redundant computing power; The main control chip is also used to control the dimming motor to control the light beam deflection based on the steering wheel rotation angle information collected by the transceiver through redundant computing power. The intelligent power distribution box is located in the front compartment of the vehicle, in the air intake path of the grille.

2. The intelligent power distribution box according to claim 1, characterized in that, The intelligent power distribution box also includes an electronic switch; The main control chip is specifically used to control the power supply circuit to turn on and off by controlling the electronic switch.

3. The intelligent power distribution box according to claim 1 or 2, characterized in that, The vehicle also includes a DC-DC converter and a battery; the power supply circuit is connected to a domain controller; the domain controller includes a main input terminal and an auxiliary power input terminal; the power supply circuit includes a main circuit connected to the DC-DC converter and a redundant circuit connected to the battery; the main circuit is connected to the main actuator components; the redundant circuit is connected to the backup actuator components; the main circuit and the redundant circuit serve as backups for each other. The main circuit is connected to the main input terminal of the domain controller and / or the power input terminal of the main actuator component; The redundant circuit connects the auxiliary power input terminal of the domain controller and / or the power input terminal of the backup actuator component; the domain controller is used to divide the electronic control unit inside the vehicle into multiple domains and to centrally distribute and manage the functions of the electronic control unit based on the domain; the actuator is used to receive the control signal from the main control chip and control at least one component in the vehicle to perform the corresponding function based on the control signal from the main control chip. The domain controller and / or main actuator components control the opening and / or closing of the main circuit relative to the DC converter via electronic switches; The domain controller and / or backup actuator components control the opening and / or closing of the redundant circuit relative to the battery via electronic switches; The DC converter and the battery are connected by an electronic switch.

4. The intelligent power distribution box according to claim 1, characterized in that, The analog drive circuit includes a boost circuit, a buck circuit, a sampling resistor, and a voltage divider resistor; The boost circuit is connected to the buck circuit; the boost circuit is connected to the voltage divider resistor, the buck circuit is connected to the sampling resistor, and the voltage divider resistor is connected to ground. The digital control circuit acquires the voltage division value on the voltage divider resistor at the output terminal and transmits it to the boost circuit in a negative feedback manner to adjust the duty cycle of the boost circuit and maintain the constant voltage power supply of the boost circuit. The digital control circuit acquires the voltage drop across the sampling resistor, which reflects the current magnitude. This voltage drop is transmitted to the step-down circuit via negative feedback to adjust the duty cycle of the step-down circuit and maintain a constant current supply.

5. The intelligent power distribution box according to claim 1, characterized in that, The main control chip is also used to control the transceiver to collect the first coordinate information through redundant computing power. The main control chip is also used to control the LED management chip to control the LEDs to emit light and / or turn off based on the first coordinate information through redundant computing power.

6. The intelligent power distribution box according to claim 5, characterized in that, The main control chip is also used to control the LED management chip to control the LEDs to emit light and / or turn off based on the first coordinate information through redundant computing power. Specifically, this includes: The main control chip uses redundant computing power to control the transceiver to transmit the first coordinate information to the digital control circuit. The main control chip uses redundant computing power to control the digital control circuit to perform coordinate transformation on the first coordinate information to obtain second coordinate information based on a private protocol; the second coordinate information is used to determine the position of the LEDs on the indicator board. The main control chip uses redundant computing power to control the digital control circuit to transmit the second coordinate information to the LED management chip; The main control chip uses redundant computing power to control the LED management chip to control the LEDs to emit light and / or turn off based on the second coordinate information.

7. The intelligent power distribution box according to claim 1 or 5, characterized in that, The lighting module includes a lamp panel, a lens, a plastic housing, and LED chips; the LED chips are located on the lamp panel; the plastic housing and the lens are located on the outside of the lamp panel; The main control chip is also used to control the transceiver to collect steering wheel rotation angle information through redundant computing power. The main control chip is also used to control the dimming motor to deflect the light beam using redundant computing power.

8. The intelligent power distribution box according to claim 7, characterized in that, The dimming motor includes a driver chip, which is connected to the main control chip; the main control chip is also used to control the dimming motor to deflect the light beam shape through redundant computing power, specifically including: The main control chip uses redundant computing power to control the transceiver to transmit the steering wheel rotation angle information to the main control chip. The main control chip calculates the rotation angle of the dimming motor based on the steering wheel rotation angle information using redundant computing power; The main control chip transmits the rotation angle information of the dimming motor to the driver chip of the dimming motor through redundant computing power; The main control chip uses redundant computing power to control the driver chip of the dimming motor to drive the dimming motor to rotate based on the rotation angle information.

9. A vehicle, characterized in that, The vehicle includes the smart power distribution box as described in any one of claims 1-8.

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