阅读说明：本技术 一种自适应调整驱动功率的车身控制系统及方法 (Vehicle body control system and method for adaptively adjusting driving power ) 是由 李大明 孔德祯 于 2020-06-11 设计创作，主要内容包括：本发明公开了一种自适应调整驱动功率的车身控制系统,包括依次连接的主控制器、信号调理模块、片选控制芯片、驱动控制模块；所述主控制器用来采集控制变量信号,处理后产生片选地址信号,控制整个系统的运作；所述片选信号控制芯片,连接在主控制器之后,用来接收主控制器产生的片选信号并进行处理,再产生相应的控制信号,同时实时对负载功率情况进行诊断,并将诊断结果传回主控制器；所述信号调理模块连接于片选信号控制芯片后,滤除信号的高次谐波与干扰信号,实现灯光等驱动的开关控制,集成度高,降低安全隐患,提高车身的安全性和快捷操控性,具有更高的稳定性和可拓展性。(The invention discloses a vehicle body control system capable of adaptively adjusting driving power, which comprises a main controller, a signal conditioning module, a chip selection control chip and a driving control module which are sequentially connected; the main controller is used for acquiring control variable signals, generating chip selection address signals after processing, and controlling the operation of the whole system; the chip selection signal control chip is connected behind the main controller and used for receiving and processing the chip selection signal generated by the main controller, generating a corresponding control signal, diagnosing the load power condition in real time and transmitting the diagnosis result back to the main controller; signal conditioning module connects behind chip selection signal control chip, and the higher harmonic and the interfering signal of filtering signal realize driven on-off control such as light, and the integrated level is high, reduces the potential safety hazard, improves the security and the swift nature controlled of automobile body, has higher stability and expansibility.)

1. A vehicle body control system for adaptively adjusting driving power is characterized by comprising a main controller, a signal conditioning module, a chip selection control chip and a driving control module which are sequentially connected;

the main controller is used for acquiring control variable signals, generating chip selection address signals after processing, and controlling the operation of the whole system; the chip selection signal control chip is connected behind the main controller and used for receiving and processing the chip selection signal generated by the main controller, generating a corresponding control signal, diagnosing the load power condition in real time and transmitting the diagnosis result back to the main controller; the signal conditioning module is connected to the chip selection signal control chip and then used for filtering and amplifying the driving signal generated by the chip selection signal control chip, filtering out higher harmonics and interference signals of the signal, amplifying the higher harmonics and interference signals to the enable requirement of the field effect transistor and then acting on the field effect transistor in the driving control module to realize on-off control of light and other driving.

2. The vehicle body control system capable of adaptively adjusting the driving power according to claim 1, wherein the main controller can be programmed to generate a corresponding chip selection signal according to a requirement and can output a signal controlled by PWM, when a digital signal variable is input to the main controller, an address signal and a control signal gated by a switch are generated according to a written corresponding variable definition code, and a signal with PWM control is output to realize a light dimming function and power adjustment.

3. The vehicle body control system for adaptively adjusting driving power according to claim 1, wherein the chip select signal control chip can be programmed and adjusted to a high-low side control mode, and the switching function of driving light and the like is realized by generating a corresponding voltage control signal to act on the on-off of a field effect transistor connected to a subsequent driving control module, and the intelligent protection function with overcurrent and overvoltage is realized by a program, so that when the overcurrent and overvoltage occurs, the switching signal of the field effect transistor can be quickly cut off, and the power diagnosis result is transmitted back to the main controller in real time, thereby being safe and stable.

4. The vehicle body control system capable of adaptively adjusting the driving power according to claim 1 or 2, wherein the main controller can receive and collect digital signals from an external switch circuit, analog signals of an external sensor circuit and frequency square wave signals collected by an external frequency collection circuit, define the signals as switch signals of corresponding functions after program processing, further generate corresponding chip selection address signals and send the corresponding chip selection address signals to the chip selection signal control chip, and intelligently judge the current vehicle body condition according to the analog signals and the frequency quantity signals of the sensor, and adaptively adjust the functions of turning off corresponding light, adjusting the driving power, turning on an alarm indicator light to prompt a driver and the like.

5. A vehicle body control method for adaptively adjusting driving power is characterized by comprising the following steps:

step 1), a main controller is connected to an external arbitrary digital switch variable circuit to change the level state, the digital signal variable is processed by an internal program through fixed pin collection, and a corresponding module address is generated;

step 2), generating chip selection address signals according to the programming design of a main controller, connecting chip selection signals, clock signals and register signal output ports of the main controller with corresponding input ports of a chip selection signal control chip, then utilizing the main controller to generate signals controlled by PWM and inputting the signals into corresponding interfaces of the chip selection signal control chip, generating signal voltages of corresponding channels by the chip according to the address signals, simultaneously combining and outputting the received PWM control signals, connecting the output ports into a signal conditioning module, filtering high-frequency noise waves in the signals, amplifying the signal voltages to the enabling voltage level of a field effect tube, and keeping the original PWM signals undistorted;

and 3) inputting enabling voltage mixed with PWM signals output by the signal conditioning module into an input end of the driving control module, enabling the enabling voltage to enable the field effect tube to be conducted, leading out an output end of the field effect tube to a driving load, further realizing the functions of turning off and adjusting power of components such as lamplight and the like, diagnosing the load, closing a passage corresponding to the field effect tube if overcurrent or overvoltage occurs, protecting the load in real time, and feeding overcurrent and overvoltage information back to the single chip microcomputer.

6. The vehicle body control method for adaptively adjusting the driving power according to claim 5, wherein the chip selection signal control chip can simultaneously realize outputting 8 independent parallel control driving signals, and the number of the driving control modules is determined according to the number of the switches.

Technical Field

The invention belongs to the field of automobile electric control, and particularly relates to an automobile body control system and method for adaptively adjusting driving power.

Background

In the existing vehicle body control system, for the control of the drive of light and the like, especially in the field of commercial vehicles, a great improvement and promotion space still exists, the controller technology with integrated intelligence is still mastered in foreign companies, from the existing market use condition, the existing domestic controller has a great vacancy, and the networked intelligence of the vehicle body controller has a lot of places to enable people to see the broad prospect of the integrated intelligent controller in the vehicle body control application.

The problems of the existing products are as follows: the driving mode is not firm due to excessive wire harnesses, and the maintainability is poor. Failure to make fault diagnosis and protection in time and failure to obtain specific fault information in time

Disclosure of Invention

The present invention aims to overcome the defects of the prior art and provide a vehicle body control method for adaptively adjusting the driving power.

The purpose of the invention can be realized by the following technical scheme:

a vehicle body control system for adaptively adjusting driving power comprises a main controller, a signal conditioning module, a chip selection control chip and a driving control module which are sequentially connected;

the main controller is used for acquiring control variable signals, generating chip selection address signals after processing, and controlling the operation of the whole system; the chip selection signal control chip is connected behind the main controller and used for receiving and processing the chip selection signal generated by the main controller, generating a corresponding control signal, diagnosing the load power condition in real time and transmitting the diagnosis result back to the main controller; the signal conditioning module is connected to the chip selection signal control chip and then used for filtering and amplifying the driving signal generated by the chip selection signal control chip, filtering out higher harmonics and interference signals of the signal, amplifying the higher harmonics and interference signals to the enable requirement of the field effect transistor and then acting on the field effect transistor in the driving control module to realize on-off control of light and other driving.

Preferably, the main controller can generate a corresponding chip selection signal according to the requirement programming, and can output a signal controlled by PWM, when a digital signal variable is input to the main controller, an address signal and a control signal gated by a switch are generated according to a written corresponding variable definition code, and the signal with PWM control is output to realize the dimming function and the power regulation of the lamplight.

Preferably, the chip selection signal control chip can be programmed and allocated to a high-low side control mode, the switching action of driving such as lamplight is realized by generating a corresponding voltage control signal to act on the on-off of a field effect transistor connected to a rear drive control module, the intelligent protection function with overcurrent and overvoltage is realized by a program, when the overcurrent and overvoltage occurs, the switching signal of the field effect transistor can be quickly cut off, and the power diagnosis result is transmitted back to the main controller in real time, so that the intelligent protection device is safe and stable.

Preferably, the main controller can receive and collect digital signals from an external switch circuit, analog signals of an external sensor circuit and frequency square wave signals collected by an external frequency collecting circuit, the digital signals, the analog signals and the frequency square wave signals are defined as switch signals with corresponding functions after being processed by programs, then corresponding chip selection address signals are generated and sent to the chip selection signal control chip, the current vehicle body condition can be intelligently judged according to the analog signals and the frequency quantity signals of the sensor, and functions of adaptively adjusting the turn-off of corresponding light, the magnitude of driving power, turning on of an alarm indicator light and prompting a driver are achieved.

The method comprises the following steps:

step 1), a main controller is connected to an external arbitrary digital switch variable circuit to change the level state, the digital signal variable is processed by an internal program through fixed pin collection, and a corresponding module address is generated;

step 2), generating chip selection address signals according to the programming design of a main controller, connecting chip selection signals, clock signals and register signal output ports of the main controller with corresponding input ports of a chip selection signal control chip, then utilizing the main controller to generate signals controlled by PWM and inputting the signals into corresponding interfaces of the chip selection signal control chip, generating signal voltages of corresponding channels by the chip according to the address signals, simultaneously combining and outputting the received PWM control signals, connecting the output ports into a signal conditioning module, filtering high-frequency noise waves in the signals, amplifying the signal voltages to the enabling voltage level of a field effect tube, and keeping the original PWM signals undistorted;

and 3) inputting enabling voltage mixed with PWM signals output by the signal conditioning module into an input end of the driving control module, enabling the enabling voltage to enable the field effect tube to be conducted, leading out an output end of the field effect tube to a driving load, further realizing the functions of turning off and adjusting power of components such as lamplight and the like, diagnosing the load, closing a passage corresponding to the field effect tube if overcurrent or overvoltage occurs, protecting the load in real time, and feeding overcurrent and overvoltage information back to the single chip microcomputer.

Preferably, the chip selection signal control chip can simultaneously output 8 independent parallel control driving signals, and the number of the driving control modules is determined according to the number of the switches.

The invention has the beneficial effects that:

(1) the invention has high integration level, can integrate the control circuit into one control board, can carry out corresponding light turn-off control by collecting the control signal through the main controller, and solves the problems of unstable driving mode, poor maintainability and the like caused by excessive wiring harnesses.

(2) The main control unit can come intelligent regulation according to the parameter of each module of gathering and correspond driven power, and the drive warning light scintillation suggestion of doing does can turn off the drive by quick response when the excessive pressure condition that overflows appears simultaneously, reduces the potential safety hazard, improves the security and the swift nature controlled of automobile body, has higher stability and expansibility.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle body control system for adaptively adjusting driving power.

FIG. 2 is a diagram of a chip select control chip and a driving control module according to the present invention.

Detailed Description

The technical scheme of the invention is further described by combining the attached drawings:

a vehicle body control system for adaptively adjusting driving power comprises a main controller, a signal conditioning module, a chip selection control chip and a driving control module which are sequentially connected;

the main controller is used for acquiring control variable signals, generating chip selection address signals after processing, and controlling the operation of the whole system; the chip selection signal control chip is connected behind the main controller and used for receiving and processing the chip selection signal generated by the main controller, generating a corresponding control signal, diagnosing the load power condition in real time and transmitting the diagnosis result back to the main controller; the signal conditioning module is connected to the chip selection signal control chip and then used for filtering and amplifying the driving signal generated by the chip selection signal control chip, filtering out higher harmonics and interference signals of the signal, amplifying the higher harmonics and interference signals to the enable requirement of the field effect transistor and then acting on the field effect transistor in the driving control module to realize on-off control of light and other driving.

In this case, preferably, the main controller may generate a corresponding chip selection signal according to a demand program, and may output a signal controlled by PWM, when a digital signal variable is input to the main controller, an address signal and a control signal gated by a switch are generated according to a written corresponding variable definition code, and a signal with PWM control is output to realize a light fade-out function and power adjustment.

In this case, preferably, the chip select signal control chip can be programmed and allocated to a high-low side control mode, the switching action of the drive of the lamplight and the like is realized by generating a corresponding voltage control signal to act on the on-off of the field-effect tube connected to the drive control module behind the chip select signal control chip, the intelligent protection function with overcurrent and overvoltage is realized by a program, when the overcurrent and overvoltage occurs, the switching signal of the field-effect tube can be quickly cut off, and the power diagnosis result is transmitted back to the main controller in real time, so that the intelligent protection function is safe and stable.

In this case, preferably, the main controller can receive and collect digital signals from the external switch circuit, analog signals of the external sensor circuit and collected frequency square wave signals of the external frequency collection circuit, the signals are defined as switch signals of corresponding functions after being processed by a program, and then corresponding chip selection address signals are generated and sent to the chip selection signal control chip, and the functions of intelligently judging the current vehicle body condition according to the analog signals and the frequency quantity signals of the sensor, adaptively adjusting the turn-off of corresponding lights, the magnitude of driving power, turning on the alarm indicator light to prompt a driver and the like are achieved.

A vehicle body control method for adaptively adjusting driving power comprises the following steps:

step 1), a main controller is connected to an external arbitrary digital switch variable circuit to change the level state, the digital signal variable is processed by an internal program through fixed pin collection, and a corresponding module address is generated;

step 2), generating chip selection address signals according to the programming design of a main controller, connecting chip selection signals, clock signals and register signal output ports of the main controller with corresponding input ports of a chip selection signal control chip, then utilizing the main controller to generate signals controlled by PWM and inputting the signals into corresponding interfaces of the chip selection signal control chip, generating signal voltages of corresponding channels by the chip according to the address signals, simultaneously combining and outputting the received PWM control signals, connecting the output ports into a signal conditioning module, filtering high-frequency noise waves in the signals, amplifying the signal voltages to the enabling voltage level of a field effect tube, and keeping the original PWM signals undistorted;

and 3) inputting enabling voltage mixed with PWM signals output by the signal conditioning module into an input end of the driving control module, enabling the enabling voltage to enable the field effect tube to be conducted, leading out an output end of the field effect tube to a driving load, further realizing the functions of turning off and adjusting power of components such as lamplight and the like, diagnosing the load, closing a passage corresponding to the field effect tube if overcurrent or overvoltage occurs, protecting the load in real time, and feeding overcurrent and overvoltage information back to the single chip microcomputer.

In this case, preferably, the chip select signal control chip can simultaneously output 8 independent parallel control driving signals, and the number of the driving control modules is determined according to the number of the switches.

Finally, it should be noted that:

the method may be carried out and its application may be carried out by those skilled in the art with reference to the disclosure herein, and it is expressly intended that all such alternatives and modifications as would be apparent to those skilled in the art are deemed to be included within the invention. While the method and application of the present invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the method and application of the invention as described herein may be made and equivalents employed without departing from the spirit and scope of the invention.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and the appended claims are intended to cover such modifications and equivalents as fall within the true spirit and scope of the invention.