CN209757018U

CN209757018U - vehicle body controller and vehicle

Info

Publication number: CN209757018U
Application number: CN201920326995.9U
Authority: CN
Inventors: 汪江涛; 郝兴峰
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-03-14
Filing date: 2019-03-14
Publication date: 2019-12-10
Anticipated expiration: 2029-03-14

Abstract

The utility model relates to a vehicle body controller and vehicle, including the MCU of the little control unit, the first power module connected with said MCU, the SOC of the system on chip, the second power module connected with said SOC, and the first function module that works under the normal electricity that is connected with said MCU, the second function module that works under the unusual electricity that is connected with said SOC, said MCU is connected with said SOC through said second power module; the first power module is used for supplying power to the MCU, the second power module is used for supplying power to the SOC, and the MCU is used for controlling the second power module to be turned on or turned off.

Description

vehicle body controller and vehicle

Technical Field

The present disclosure relates to the field of vehicle control, and in particular, to a vehicle body controller and a vehicle.

Background

A body controller (body control module BCM) is an electronic control unit for controlling an electrical system of a vehicle body, and is one of important components of a vehicle, and can control various functions of an air conditioner, an instrument display, an anti-theft indicator light, a bluetooth, a battery thermal management controller, a headlight, a gateway, a high-frequency receiver, a parking assist, a low-frequency driver, and the like of the vehicle through an integrated body controller.

Compared with the traditional electrical control, the existing integrated vehicle body controller can greatly improve the available space in the vehicle, effectively reduce wiring harnesses, increase the available space in the vehicle, improve the electromagnetic environment in the vehicle, but when the vehicle enters a sleep mode, the existing integrated vehicle body controller can wake up certain functions at regular time and consumes a long time, the current is large, and the static power consumption is increased to a certain extent.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a vehicle body controller and a vehicle.

in a first aspect, a vehicle body controller is provided, which is applied to a vehicle, and comprises: the system comprises a Micro Control Unit (MCU), a first power module connected with the MCU, a System On Chip (SOC), a second power module connected with the SOC, a first functional module connected with the MCU and working under normal power, and a second functional module connected with the SOC and working under abnormal power, wherein the MCU is connected with the SOC through the second power module; the first power module is used for supplying power to the MCU, the second power module is used for supplying power to the SOC, and the MCU is used for controlling the second power module to be turned on or turned off.

Optionally, the MCU includes a first port and is connected to the second power module through the first port; the MCU is used for controlling the second power supply module to be turned on or turned off by adjusting the output state of the first port.

Optionally, the MCU further includes a second port, and is connected to the first functional module through the second port, and different second ports are connected to different first functional modules; the MCU is used for controlling the first functional module to be opened or closed by adjusting the output state of the second port.

Optionally, the MCU includes a first timer, and the first functional module includes a signal acquisition module; the first timer is used for recording first time, the signal acquisition module is used for acquiring an ignition signal of a vehicle, and the MCU is used for controlling the second power module to be closed if the ignition signal is not acquired when the first time reaches a first preset time threshold value, so that the SOC is powered off.

Optionally, the MCU is further configured to control the preset function module to be turned off and control the MCU to enter the sleep state if the ignition signal is not obtained when the first time reaches a first preset time threshold, where the preset function module includes at least one preset function module in the first function module.

Optionally, the MCU further includes a second timer, the second timer is configured to record a second time, and the MCU is configured to trigger the second timer to record the second time when entering the sleep state, and switch the sleep state to the operating state when the recorded second time reaches a second preset time threshold, and control the target function module in the preset function module to be turned on, and switch the operating state to the sleep state after controlling the target function module to be turned on.

Optionally, the MCU further includes a third timer, the third timer is configured to record a third time, and the MCU is further configured to trigger the third timer to record the third time when the target function module is controlled to be turned on, and switch the sleep state to the operating state when the recorded third time reaches a third preset time threshold, and control the target function module to be turned off, and switch the operating state to the sleep state after controlling the target function module to be turned off.

Optionally, the first functional module includes one or more of a signal acquisition module, an anti-theft indicator light driving module, a high-frequency receiving module, a low-frequency antenna driving module, a bluetooth module, and a gateway.

In a second aspect, a vehicle is provided that includes the vehicle body controller of the first aspect of the present disclosure.

Through the technical scheme, the vehicle body controller provided by the disclosure comprises a Micro Control Unit (MCU), a first power module, a System On Chip (SOC), a second power module, a first functional module and a second functional module, wherein the first power module is connected with the MCU and supplies power to the MCU; the MCU is used for controlling the second power supply module to be turned on or turned off, namely, the MCU and the SOC can be used for electrically controlling the vehicle together, and in a vehicle sleep state, the MCU can control the SOC to be powered off and not work, so that the SOC does not generate static power consumption completely, and the MCU has the characteristic of small static power consumption, so that the static power consumption of the vehicle body controller in the sleep state is lower.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

Fig. 1 is a block diagram of a conventional integrated vehicle body controller;

FIG. 2 is a block diagram illustrating a first type of vehicle body controller in accordance with an exemplary embodiment;

FIG. 3 is a block diagram illustrating a second type of vehicle body controller in accordance with an exemplary embodiment;

FIG. 4 is a block diagram illustrating a third type of vehicle body controller in accordance with an exemplary embodiment;

FIG. 5 is a block diagram illustrating a fourth type of vehicle body controller in accordance with an exemplary embodiment;

FIG. 6 is a block diagram illustrating a fifth type of vehicle body controller in accordance with an exemplary embodiment;

FIG. 7 is a block diagram illustrating a sixth type of vehicle body controller in accordance with an exemplary embodiment;

fig. 8 is a block diagram illustrating a seventh type of vehicle body controller in accordance with an exemplary embodiment.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

the present disclosure is mainly applied to a control scenario of a vehicle electrical System, as shown in fig. 1, an existing integrated vehicle body controller generally employs one SOC (System On Chip) Chip to control all functions, so as to reduce the number of main control chips, that is, the number of devices generating static power consumption in a sleep mode, reduce the static power consumption, but because the vehicle body controller has the functions of timing awakening in the sleep mode of the vehicle, such as an anti-theft indicator lamp, active card searching and the like, when the function is awakened, the existing integrated vehicle body controller needs to awaken the SOC first, but because the time consumption and the current required for awakening the SOC are long and the current is large, the static power consumption is increased to a certain extent, so that the static power consumption of the existing integrated vehicle body controller is not obviously reduced compared with the traditional electric control when the vehicle is in a dormant state.

In order to solve the existing problems, the present disclosure provides a vehicle body controller and a vehicle, a single SOC architecture can be replaced by an MCU (micro controller Unit) plus SOC architecture, the MCU controls a power supply of the SOC, in a sleep mode, the MCU controls the SOC to be powered off and not work, the SOC does not generate static power consumption at all, when certain functions need to be awakened regularly, the MCU can be awakened first, and then the awakened MCU controls the corresponding functions to be turned on, and the MCU itself has the characteristics of low power consumption and small static power consumption, so that the static power consumption of the vehicle body controller provided by the present disclosure in a sleep state is low.

Specific embodiments of the present disclosure will be described below with reference to the accompanying drawings.

fig. 2 is a block diagram illustrating a vehicle body controller according to an exemplary embodiment, applied to a vehicle, and as shown in fig. 2, the vehicle body controller 200 includes:

An MCU (Microcontroller Unit) 201, a first power module 202 connected with the MCU201, a system on chip SOC203, a second power module 204 connected with the SOC203, a first functional module 205 working under normal power connected with the MCU201, a second functional module 206 working under abnormal power connected with the SOC203, wherein the MCU201 is connected with the SOC203 through the second power module 204; the first power module 202 is configured to supply power to the MCU201, the second power module 204 is configured to supply power to the SOC203, and the MCU201 is configured to control the second power module 204 to be turned on or off.

Wherein, the first power module 202 can be a storage battery, when the vehicle is an electric vehicle, the second power module 204 can be a power battery of the vehicle, when the vehicle is a fuel-powered vehicle, the second power module 204 can be a generator of the vehicle, a normal power generally refers to a circuit which is not controlled by a switch, a relay, etc., for example, for the vehicle, a circuit which is not controlled by a vehicle key and is powered by the storage battery of the vehicle is called a normal power, considering the practical situation, the MCU has the characteristics of simple function and low power consumption, so the MCU can normally operate under the normal power, the control operation of the SOC is relatively complex, and needs to operate under the abnormal power, in addition, in the practical application scenario, except for special situations such as vehicle maintenance, the first power module 202 and the MCU201 are always connected, that is, under the normal situation, the first power module 202 may continuously supply power to the MCU 201.

Further, in order to save system resources and improve work efficiency, in the present disclosure, functions to be controlled in the vehicle electrical system may be divided into functions of working under normal power (corresponding to the first function module 205) and functions of working under abnormal power (corresponding to the second function module 206), and functions of working under normal power may be controlled by the MCU201 and functions of working under abnormal power may be controlled by the SOC203, and specifically, the first function module 205 may include one or more of an anti-theft indicator driving module, a high frequency receiving module, a low frequency antenna driving module, a bluetooth module, a signal acquisition module, and a gateway, and the second function module may include one or more of an air conditioner driving, a parking assist system probe driving, an engine sound simulator, a vehicle lamp driving, a buzzer driving, an all liquid crystal combination meter, a relay coil driving, a direct current motor driving, a steering and a reverse radar alarm module, in addition, when the first functional module is in a type selection mode, a device with low static power consumption can be selected, so that the static power consumption of the whole system can be further reduced.

In a possible implementation manner of the present disclosure, communication may be implemented between the MCU201 and the SOC203 in a communication manner such as UART (Universal Asynchronous Receiver/Transmitter) or SPI (serial peripheral Interface).

optionally, fig. 3 is a block diagram of a vehicle body controller according to the embodiment shown in fig. 2, as shown in fig. 3, the MCU201 includes a first port 2011 and is connected to the second power module 204 through the first port 2011; the MCU201 is configured to control the second power module 204 to be turned on or off by adjusting the output state of the first port 2011, that is, the MCU201 can control the SOC203 to be turned off or not operated by the first port 2011 when the vehicle is in a sleep state, so that the SOC203 does not generate static power consumption at all when the vehicle is in the sleep state.

The output state may include a state in which the first port 2011 outputs an electrical signal, such as a high level or a low level.

For example, the high level may be denoted by 1, the low level may be denoted by 0, in this case, when the MCU201 adjusts the output state of the first port 2011 from 1 to 0, the output electrical signal of the first port 2011 may be adjusted from the high level to the low level, and the second power module 204 connected to the first port 2011 may be controlled to be turned off, and conversely, when the output state of the first port 2011 is adjusted from 0 to 1, the MCU201 may adjust the output electrical signal of the first port 2011 from the low level to the high level, and the second power module 204 connected to the first port 2011 may be controlled to be turned on.

It should be noted that, after the MCU201 controls the second power module 204 to be turned on, the second power module 204 can supply power to the SOC203, so as to control the SOC203 to enter a working state, and then the SOC203 entering the working state controls the second functional module 206 to also enter the working state; conversely, after the MCU201 controls the second power module 204 to turn off, the second power module 204 cannot supply power to the SOC203, so that the SOC203 and the second functional module 206 controlled by the SOC203 are turned off from the operating state, and normally, the MCU201 enters a sleep state when the vehicle is in the sleep state, at this time, the second power module 204 can be controlled to turn off, and the SOC203 is in a power-off state, so that the SOC203 generates no static power consumption at all when the vehicle is in the sleep mode.

optionally, fig. 4 is a block diagram of a vehicle body controller shown in the embodiment shown in fig. 3, as shown in fig. 4, the MCU201 further includes a second port 2012 and is connected to the first functional module 205 through the second port 2012, and different second ports 2012 are connected to different first functional modules 205; the MCU201 is configured to control the first functional module 205 to be turned on or turned off by adjusting the output state of the second port 2012, and a specific implementation manner of the MCU201 is similar to that of the embodiment shown in fig. 3, which controls the second power module 204 to be turned on or turned off by adjusting the output state of the first port 2011, and is not described herein again.

In the present disclosure, the functions of the vehicle that need to wake up at regular time in the sleep mode are all controlled by the MCU201, and thus, when some functions need to be awakened regularly, the MCU201 can be awakened first, and then the awakened MCU201 controls the corresponding functions to be turned on by adjusting the output state of the target port, wherein, the destination port refers to a port connected to a preset function that needs to be timed to wake up in the second port 2012, since the MCU201 consumes less power than the SOC203, when the vehicle needs to wake up certain functions periodically in the sleep mode, the corresponding functions can be controlled to be started by waking up the MCU201 with smaller power consumption, which can reduce static power consumption, save system resources, in addition, when the MCU201 is in the sleep state, the output states of the first port and the second port are all kept unchanged.

Optionally, fig. 5 is a block diagram of a vehicle body controller shown in the embodiment shown in fig. 4, as shown in fig. 5, the MCU201 includes a first timer 2013, and the first function module 205 includes a signal acquisition module 2051;

the first timer 2013 is configured to record a first time, the signal acquisition module 2051 is configured to acquire an ignition signal of a vehicle, and the MCU201 is configured to control the second power module 204 to turn off if the ignition signal is not acquired when the first time reaches a first preset time threshold, so that the SOC203 is powered off.

The first preset time threshold may be a time length preset in conjunction with an actual application scenario, for example, in a possible application scenario, the user may repeatedly start the vehicle in a short time due to misoperation or unskilled operation, and accordingly, the MCU201 repeatedly switches between the sleep state and the working state in the short time, which will undoubtedly cause damage to the vehicle and affect the service life of the vehicle, therefore, in the present disclosure, the first preset time threshold may be preset, and the first time is recorded by the first timer 2013, the MCU201 is configured to control the second power module 204 to turn off if the ignition signal is not obtained when the first time reaches a first preset time threshold, so that the SOC203 is powered off, thereby avoiding the adverse effect of misoperation on the vehicle and saving system resources.

It should be noted that when the first time reaches the first preset time threshold, if the ignition signal is not acquired, it is determined that the vehicle meets the sleep condition, and the second power module 204 may be controlled to be turned off, so that the SOC203 is powered off, and thus the SOC203 does not generate static power consumption in the vehicle sleep state.

In a possible implementation manner, when a user operates the vehicle ignition device (e.g., presses a start button), the signal acquisition module 2051 may acquire the ignition signal according to the operation of the user, and when the signal acquisition module 2051 acquires the ignition signal, the signal acquisition module 2051 may send the ignition signal to the MCU201, so that the MCU201 controls the second power module 204 to be turned on when receiving the ignition signal, so as to power on the SOC203, and further enable the second functional module 106 controlled by the SOC203 to enter a working state.

Optionally, the MCU201 is further configured to control a preset function module to be turned off and control the MCU201 to enter a sleep state if the ignition signal is not obtained when the first time reaches the first preset time threshold, where the preset function module includes at least one preset function module in the first function module 205.

Considering the practical application scenario, when the vehicle is in the dormant state, some normal power functions of the vehicle still need to be kept in a working state, for example, when the vehicle is in the dormant state, the high frequency receiving module of the vehicle cannot enter the dormant state, so that when a user unlocks the door by using the smart key, the high frequency receiving module of the vehicle can normally receive a signal sent by the smart key so as to unlock the door in time, therefore, the preset function module may include a function module that can enter the dormant state, such as an anti-theft indicator lamp driving module, a low frequency antenna driving module, and the like, preset in the first function module when the vehicle is in the dormant state, and in the practical scenario, the user may preset the preset function module, such as a function module that can enter the dormant state (i.e., the preset function module) and a function module that still needs to be kept in the vehicle dormant state, by using different identification information, this is not restricted to this, like this, under the prerequisite of guaranteeing that furthest reduces vehicle static power consumption under the dormant mode, also do not influence the normal use of vehicle (like when receiving the signal of unblanking, can in time unblank the door) for user experience is better.

Optionally, fig. 6 is a block diagram of a vehicle body controller shown in the embodiment shown in fig. 5, as shown in fig. 6, the MCU201 further includes a second timer 2014, the second timer 2014 is configured to record a second time, and the MCU201 is configured to trigger the second timer 2014 to record the second time when entering the sleep state, and switch from the sleep state to an operating state and control a target function module in the preset function module to be turned on when the recorded second time reaches a second preset time threshold, and switch from the operating state to the sleep state after controlling the target function module to be turned on.

Wherein the second preset time threshold may be an interval time for waking up the target function module regularly, the target function module may include a function module that needs to be awakened periodically in the preset function module, such as a driving module of the anti-theft indicator light (which is required to be turned on by the vehicle at intervals so as to detect whether an anti-theft system of the vehicle is in an activated state at regular time), a driving module of the low-frequency antenna (such as a function of searching for the card at regular time), etc., and in addition, after entering the sleep state, when the recorded second time reaches a second preset time threshold, the MCU201 is awakened after the sleep state is switched to the working state, at this time, only the MCU201 is awakened, the SOC203 is not turned on, and when it is determined that the ignition signal is obtained, the MCU201 controls the second power module 204 to be turned on, so that the SOC203 is turned on after being powered on.

Optionally, fig. 7 is a block diagram of a vehicle body controller shown in the embodiment shown in fig. 6, as shown in fig. 7, the MCU201 further includes a third timer 2015, the third timer 2015 is configured to record a third time, the MCU201 is further configured to trigger the third timer 2015 to record the third time when controlling the target function module to be turned on, and switch from the sleep state to the operating state and control the target function module to be turned off when the recorded third time reaches a third preset time threshold, and switch from the operating state to the sleep state after controlling the target function module to be turned off.

In addition, after the MCU201 enters the sleep state, when the recorded third time reaches a third preset time threshold, the switching from the sleep state to the working state is to wake up the MCU201 again, and at this time, only the MCU201 is woken up, and the SOC203 is not turned on.

Illustratively, when the vehicle is in a sleeping state, the anti-theft indicator lamp of the vehicle needs to be turned on every twenty minutes, and five minutes are turned on each time for example, at this time, the target function module is the anti-theft indicator lamp driving module in the first function module 205, the second preset time threshold is 20 minutes, the third preset time threshold is 5 minutes, when the MCU201 does not acquire the ignition signal within the first preset time threshold period, the vehicle MCU201 may be controlled to enter the sleeping state, at this time, the second timer 2014 is triggered to record the second time, when it is determined that the recorded second time reaches 20 minutes, the MCU201 is controlled to be changed from the sleeping state to the working state (i.e. the MCU 201), and then the awakened MCU201 controls the anti-theft indicator lamp driving module to be turned on, so that the anti-theft indicator lamp of the vehicle is turned on, and static power consumption is saved, after controlling the anti-theft indicator light driving module to be turned on, the MCU201 can be controlled to turn from the working state to the sleep state, and in addition, when the driving module of the anti-theft indicator lamp is controlled to be started, the third timer 2015 is triggered to record the third time, when the recorded third time reaches 5 minutes, the MCU201 is controlled to be switched from the dormant state to the working state (i.e. the MCU201 is awakened again), and then the awakened MCU201 controls the anti-theft indicator lamp driving module to be turned off, so that the anti-theft indicator lamp of the vehicle is turned off, and in order to save static power consumption, after the driving module of the anti-theft indicator lamp is controlled to be turned off, the MCU201 can be controlled to be converted from the working state to the dormant state again, the operation is repeated in a circulating way, when the MCU is awakened, compared with the state of charge (SOC) awakening, the power consumption is low, so that the static power consumption can be greatly reduced, and the service life of a battery is prolonged.

Optionally, fig. 8 is a block diagram of a vehicle body controller according to the embodiment shown in fig. 7, and as shown in fig. 8, the first function module 205 includes one or more of a signal acquisition module 2051, an anti-theft indicator lamp driver module 2052, a high-frequency receiving module 2053, a low-frequency antenna driver module 2054, a bluetooth module 2055, and a gateway 2056.

in addition, as shown in fig. 8, the second function module 206 includes one or more of a vehicle lamp driving module 2061, an air-conditioning-related driving module 2062, a parking assist driving module 2063, an engine sound simulator 2064, a steering and reversing radar alarm 2065, a dc motor drive 2066, a relay coil driving module 2067, a liquid crystal combination meter 2068, and a buzzer driving module 2069.

by adopting the automobile body controller, the MCU and the SOC can be used for carrying out electrical control on the vehicle together, and under the dormant state of the vehicle, the MCU can control the SOC to be powered off and not work, so that the SOC does not generate static power consumption completely, and the MCU has the characteristic of small static power consumption, so that the static power consumption of the automobile body controller under the dormant state is lower.

The present disclosure also provides a vehicle including the above vehicle body controller.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

it should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. A vehicle body controller, applied to a vehicle, comprising:

The system comprises a Micro Control Unit (MCU), a first power module connected with the MCU, a System On Chip (SOC), a second power module connected with the SOC, a first functional module connected with the MCU and working under normal power, and a second functional module connected with the SOC and working under abnormal power, wherein the MCU is connected with the SOC through the second power module; the first power module is used for supplying power to the MCU, the second power module is used for supplying power to the SOC, and the MCU is used for controlling the second power module to be turned on or turned off.

2. The vehicle body controller according to claim 1, wherein the MCU includes a first port and is connected to the second power supply module through the first port;

The MCU is used for controlling the second power supply module to be turned on or turned off by adjusting the output state of the first port.

3. The vehicle body controller according to claim 2, wherein the MCU further comprises a second port and is connected to the first functional module through the second port, and different second ports are connected to different first functional modules;

The MCU is used for controlling the first functional module to be opened or closed by adjusting the output state of the second port.

4. The vehicle body controller according to any one of claims 1 to 3, wherein the MCU comprises a first timer, and the first function module comprises a signal acquisition module;

The first timer is used for recording first time, the signal acquisition module is used for acquiring an ignition signal of a vehicle, and the MCU is used for controlling the second power module to be closed if the ignition signal is not acquired when the first time reaches a first preset time threshold value, so that the SOC is powered off.

5. The vehicle body controller according to claim 4, wherein the MCU is further configured to control a preset function module to be turned off and control the MCU to enter a sleep state if the ignition signal is not obtained when the first time reaches the first preset time threshold, and the preset function module includes at least one preset function module in the first function module.

6. The vehicle body controller according to claim 5, wherein the MCU further comprises a second timer, the second timer is configured to record a second time, the MCU is configured to trigger the second timer to record the second time when entering the sleep state, switch from the sleep state to an operating state when the recorded second time reaches a second preset time threshold, control a target function module in the preset function module to be turned on, and switch from the operating state to the sleep state after controlling the target function module to be turned on.

7. The automobile body controller according to claim 6, wherein the MCU further comprises a third timer, the third timer is configured to record a third time, the MCU is further configured to trigger the third timer to record the third time when controlling the target function module to be turned on, and switch from the sleep state to the operating state and control the target function module to be turned off when the recorded third time reaches a third preset time threshold, and switch from the operating state to the sleep state after controlling the target function module to be turned off.

8. The vehicle body controller according to any one of claims 5 to 7, wherein the first function module comprises one or more of a signal acquisition module, an anti-theft indicator lamp driving module, a high frequency receiving module, a low frequency antenna driving module, a Bluetooth module, and a gateway.

9. A vehicle characterized by comprising the vehicle body controller of any one of claims 1 to 8.