A domain fusion control system for commercial vehicles

Abstract

The present invention provides a commercial vehicle domain fusion control system, comprising a fusion control domain module, a power control domain module, a chassis control domain module and an intelligent driving domain module; the fusion control domain module is used to receive vehicle status information, and classify and fuse functions according to user scenarios, and issue control instructions based on the vehicle status information to drive each actuator to act, thereby realizing the integrated functions of vehicle economy management, vehicle power management, driving safety management, vehicle lighting management, and human-computer interaction; the fusion control domain module is also used to forward vehicle status information to the power control domain module, the chassis control domain module, and the intelligent driving domain module, and receive the collected vehicle status information and generated control instructions from the power control domain module, the chassis control domain module, and the intelligent driving domain module; the present invention can meet the diverse user scenario requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of commercial vehicle control, and in particular relates to a commercial vehicle domain fusion control system. Background Art

[0002] Currently, commercial vehicles use domain control systems such as Figure 1 As shown, it includes the vehicle control domain, body control domain, infotainment domain, power control domain, intelligent driving domain, etc., and each domain control system is independent of each other. Based on the driver's and passengers' pursuit of comfort, convenience, intelligence, and a sense of technology, a single-domain control method is obviously unable to achieve the function of cross-domain multi-system integration and joint control. With the development of automotive electronics and domain fusion technology, domain fusion control and decision-making systems have emerged to solve the problem of cross-domain fusion control that cannot be achieved by a single control domain. However, the existing domain control technology does not have a good solution in this regard, and the control functions that can be achieved are limited, which cannot meet the diverse user scenario requirements. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies of the above-mentioned background technology and provide a commercial vehicle domain fusion control system to meet the diverse needs of user scenarios.

[0004] The technical solution adopted by the present invention is: a commercial vehicle domain fusion control system, including a fusion control domain module, a power control domain module, a chassis control domain module and an intelligent driving domain module; the fusion control domain module is used to receive vehicle status information, and classify and fuse functions according to user scenarios, and issue control instructions based on the vehicle status information to drive each actuator to act, so as to realize the integrated functions of vehicle economy management, vehicle power management, driving safety management, vehicle lighting management, and human-computer interaction;

[0005] The fusion control domain module is also used to forward vehicle status information to the power control domain module, the chassis control domain module, and the intelligent driving domain module, and receive the collected vehicle status information and the generated control instructions from the power control domain module, the chassis control domain module, and the intelligent driving domain module;

[0006] The power control domain module is used to control the working state of the vehicle power system based on the vehicle state information;

[0007] The chassis control domain module is used to control the working state of the vehicle chassis system based on the vehicle state information;

[0008] The intelligent driving domain module is used to realize the vehicle's intelligent driving function based on vehicle status information.

[0009] In the above technical solution, the vehicle status information received by the fusion control domain module includes switch information, sensor information, wireless communication information, voice information, video information and interactive information from other control domain modules.

[0010] In the above technical solution, the functions implemented by the fusion control domain module issuing control instructions to drive the actions of each actuator include but are not limited to: message routing, message integration processing, throttle control, engine start and shutdown control, cruise control, fan control, auxiliary braking control, transmission gear selection and shifting, power take-off control, speed and torque limit control, clutch alarm, power management, AGS control, integrated indoor / outdoor lighting control, washing and wiper control, gas-electric horn control, differential control, power take-off control, window control, sunroof control, door lock control, rearview mirror adjustment control, body load control, adaptive wiper control, automatic headlight control, follow-up headlight AFS, tire pressure monitoring, seat adjustment control, steering wheel position adjustment control, keyless entry and one-button start control, real-time display of vehicle information, video monitoring, and voice control.

[0011] In the above technical solution, the vehicle economy management refers to the fusion control domain module comprehensively receiving the vehicle's load, driving conditions, vehicles in front, and ambient temperature information during vehicle driving, calculating the throttle opening size and outputting it, and controlling the engine and electrical load to operate in the optimal economic working area.

[0012] In the above technical solution, the vehicle power management refers to the fusion control domain module which determines the vehicle driving condition through the throttle opening, brake pedal, vehicle speed, and engine speed, and determines the battery status according to the battery charge, and controls the generator to generate electricity at different voltage levels according to the vehicle driving condition and battery status.

[0013] In the above technical solution, the driving safety management refers to the fusion control domain module determining whether to brake, activate auxiliary braking, and trigger sound and light warnings to the driver during vehicle driving based on surrounding vehicles, road conditions, and vehicle mass information to control driving safety.

[0014] In the above technical solution, the whole vehicle lighting management refers to the fusion control domain module adapting to the driver in different user scenarios to provide whole vehicle lighting management.

[0015] In the above technical solution, the integrated human-computer interaction function refers to the interconnection of 5G devices, Bluetooth cordless phones, voice control, video, and touch screen functions.

[0016] In the above technical solution, the fusion control domain module communicates with the power control domain module and the chassis control domain module through the CAN bus.

[0017] In the above technical solution, the fusion control domain module communicates with the intelligent driving domain module via Ethernet.

[0018] The beneficial effects of the present invention are as follows: the present invention satisfies the pursuit of comfort, convenience, intelligence, and a sense of technology by drivers and passengers by realizing the integrated functions of vehicle economy management, vehicle power management, driving safety management, vehicle lighting management, and human-machine interaction, and realizes the cross-domain multi-system integration joint adjustment and joint control function. The vehicle economy management function of the present invention achieves the purpose of fuel saving and consumption reduction of the whole vehicle by controlling the engine and electrical load to work in the best economic working area. The vehicle power management function of the present invention controls the generator to generate electricity at different voltage levels based on the vehicle driving conditions and battery status, effectively saving electricity and maintaining the health of the battery while meeting the power demand of different scenarios. The driving safety management function of the present invention can generate braking instructions and prompt information according to the driving status and road conditions of the vehicle, effectively ensuring driving safety. The vehicle lighting management function of the present invention can adapt to different user scenarios of the driver such as work, rest, and entertainment, provide vehicle lighting management, and ensure the safety of lighting use in different scenarios. The integrated human-computer interaction function of the present invention can allow users to experience the comfort, convenience and sense of technology of driving through 5G device interconnection, Bluetooth cordless phone, voice control, video, touch screen and other functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the system architecture of the prior art;

[0020] Figure 2 It is a schematic diagram of the system architecture of the present invention;

[0021] Figure 3 FIG. 4 is a schematic diagram of a system architecture of a specific embodiment. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not constitute a limitation on the present invention.

[0023] like Figure 2 As shown, the present invention provides a commercial vehicle domain fusion control system, including a fusion control domain module, a power control domain module, a chassis control domain module and an intelligent driving domain module; the fusion control domain module is used to receive vehicle status information, and classify and fuse functions according to user scenarios, and issue control instructions based on the vehicle status information to drive each actuator to act, so as to realize the integrated functions of vehicle economy management, vehicle power management, driving safety management, vehicle lighting management, and human-computer interaction;

[0024] The fusion control domain module is also used to forward vehicle status information to the power control domain module, the chassis control domain module, and the intelligent driving domain module, and receive the collected vehicle status information and the generated control instructions from the power control domain module, the chassis control domain module, and the intelligent driving domain module;

[0025] The power control domain module is used to control the working state of the vehicle power system based on the vehicle state information;

[0026] The chassis control domain module is used to control the working state of the vehicle chassis system based on the vehicle state information;

[0027] The intelligent driving domain module is used to realize the vehicle's intelligent driving function based on vehicle status information.

[0028] The domain fusion control system of the present invention adopts a fusion control domain (DFCU, Domain Fusion Control Unit) + three separate control domain technical solutions. The fusion control domain DFCU integrates the vehicle control domain, body control domain, and infotainment domain. The three separate control domains are composed of power control domain, chassis control domain, and intelligent driving domain.

[0029] like Figure 3 As shown, the fusion control domain functions of this specific embodiment include but are not limited to: message routing, message integration processing, throttle control, engine start and stop control, cruise control, fan control, air conditioning control, cab flip control, generator control, steering column control, idle speed adjustment, auxiliary brake control, gearbox selection and shifting, power take-off control, axle difference / wheel difference control, speed limit and torque limit control, fuel tank detection, clutch alarm, power management, AGS control, integrated indoor / outdoor lighting / ambience lighting control, washing and wiper control, gas-electric horn control, differential control, power take-off control, window control, sunroof control, dryer control, door lock control, rearview mirror adjustment control, shade control, body load, adaptive wiper, automatic headlight, follow-up headlight AFS, tire pressure monitoring, seat adjustment control, steering wheel position adjustment control, keyless entry and one-button start control, real-time display of vehicle information, video monitoring, voice control and other functions.

[0030] The fusion control domain module receives information from switches, sensors, wireless communications, voice, video, and other domains, and classifies and integrates functions according to user scenarios, implements the control logic of functional integration, issues control instructions, drives each actuator to act, and realizes joint debugging and control among multiple systems to meet the needs of various user scenarios.

[0031] Among them, the vehicle status information of switches includes: the status information of the accelerator pedal, brake pedal, one-button start switch, left lever combination switch, right lever combination switch, steering wheel combination switch, driving area combination switch, berth area combination switch, door area combination switch, large-screen soft combination switch and other components.

[0032] The vehicle status information of sensor type includes real-time signals collected by oil level sensor, air pressure sensor, pressure sensor, battery IBS sensor, water level sensor, position sensor, shoe wear sensor, fan speed sensor, steering oil tank level sensor and sunlight / rainfall sensor.

[0033] The video-based vehicle status information includes: video signals collected by the front camera, side cameras, front top camera and rear camera.

[0034] Voice-related vehicle status information includes sound signals collected in real time by microphones and other voice devices.

[0035] Vehicle status information of wireless communication type is received through communication signals of on-board 4G / 5G devices, Bluetooth devices and USB interfaces.

[0036] This specific embodiment can also receive external input commands through the vehicle-mounted screen and instrument.

[0037] The fusion control domain exchanges information with the power control domain, chassis control domain, intelligent driving domain, etc. through CAN bus / Ethernet.

[0038] The power control domain module receives real-time acquisition signals from sensors such as the crankshaft position sensor, cam position sensor, oxygen sensor, air flow sensor and intake pressure sensor, thereby generating control instructions for power system equipment such as injectors and ERG valves.

[0039] The chassis control domain module receives real-time acquisition signals from sensors such as pressure sensors, height sensors and cameras, and generates control instructions for chassis system equipment such as braking mechanisms.

[0040] The intelligent driving domain module receives real-time acquisition signals from millimeter-wave radar, lidar, camera, high-precision map module, etc., and generates control instructions for driving system equipment such as steering mechanism.

[0041] In addition to implementing the control logic of a single function, the fusion control domain DFCU (Domain Fusion Control Unit) of this specific embodiment is also responsible for the control logic of the integration of two or more functions. The functional integration includes vehicle economic management, vehicle power management, driving safety management, vehicle lighting management, and integrated human-computer interaction mode.

[0042] Vehicle economy management refers to the process of calculating and outputting the throttle opening by comprehensively considering the vehicle's load, road conditions, vehicles ahead, ambient temperature and other information during driving, controlling the engine and electrical loads to operate in the best economic working area, and achieving the goal of saving fuel and reducing consumption of the entire vehicle.

[0043] The vehicle weight is estimated by the vehicle mass estimation module of DFCU, which calculates the vehicle weight, including empty, half-loaded, fully loaded and other information.

[0044] The driving conditions are managed by the high-precision map module of DFCU, which calculates information such as uphill and distance, downhill and distance, straight and distance, turns and distance, etc.

[0045] The vehicle ahead is monitored by a group of onboard cameras, which calculate the number and distance of vehicles ahead, including whether there are any vehicles, the nearest vehicle in the lane and its distance, the nearest vehicle in the adjacent lane and its distance, and other information.

[0046] The ambient temperature is taken care of by the ambient temperature sensor, which calculates the weather ambient temperature.

[0047] The control object is the engine, and the actuators include the air conditioner, fan, air intake grille AGS, generator, horn, etc.

[0048] Application scenario 1: DFCU obtains the information from the above modules that the vehicle is fully loaded, there is a downhill slope ahead and the downhill distance is 850 meters, followed by a slow uphill and uphill distance of 1,350 meters, there are no vehicles in the lane ahead and the adjacent lane, and the outdoor temperature is below 15 degrees. Based on the comprehensive analysis and decision-making of this information, the control strategy is to continue driving in the lane, the system automatically takes over the driver's accelerator pedal mode, release the accelerator pedal, turn off the air conditioner, the fan and the air intake grille AGS do not work, turn on the generator to generate electricity to charge the battery and then recover the energy, and use the vehicle's heavy-load inertia to glide. After the vehicle has slid downhill for a remaining distance of 100 meters, the voice reminds the driver to take over the accelerator, end this application scenario, and enter the next application scenario.

[0049] Application scenario 2: DFCU obtains no-load, straight ahead and straight ahead distance of 1100 meters, followed by downhill and downhill distance of 1550 meters, multiple vehicles in the lane ahead and the nearest vehicle is 150 meters away, there is a vehicle in the adjacent lane ahead and the distance is 350 meters, and the outdoor temperature is above 32 degrees. Based on the comprehensive analysis and decision-making of this information, the control strategy is to remind the driver to change lanes, and after the lane change is successful, the system automatically takes over the driver's accelerator pedal mode, increases the throttle opening to accelerate and catch up with the vehicle in front to within 150 meters, starts the automatic cruise mode, automatically takes over the driver's accelerator pedal mode, keeps the vehicle distance within the range of 100-110 meters, controls the temperature in the cab to automatically turn on / off the air conditioner within the range of 26±1 degrees, controls the engine cooling water temperature to automatically turn on / off the fan and air intake grille within the cooling temperature range of 90±5 degrees, controls the battery voltage to automatically turn on / off the generator within the range of 26±2 degrees, and when the vehicle's automatic cruising distance is 100 meters, the voice reminds the driver to take over the throttle, ends this application scenario, and enters the next application scenario.

[0050] Vehicle power management refers to judging the vehicle's driving conditions through the throttle opening, brake pedal, vehicle speed, and engine speed, and judging the battery status based on the battery charge. The DFCU combines this information to control the generator to generate electricity at different voltage levels.

[0051] The vehicle driving conditions include acceleration, normal driving, braking, coasting, idling and stopping. Acceleration means the throttle opening is >45% for 0.5 seconds; normal driving means the throttle opening is >5%, vehicle speed is >5km / h, engine speed is >400r / min, and the brake pedal is not pressed; braking means the vehicle speed is >10km / h, the brake pedal is pressed, and the duration is greater than 1.5 seconds; coasting means the throttle opening is <=3%, the brake pedal is not pressed, the vehicle speed is >10km / h, and the duration is greater than 2 seconds; idling means the engine speed is >400r / min, the throttle opening is <=3%, the vehicle speed is <=3km / h, and the duration is greater than 2 seconds; stopping means the engine speed is <400r / min, the vehicle speed is <=3km / h, and the duration is greater than 2 seconds.

[0052] The battery status includes normal power, insufficient power, and excess power. Normal power means that the battery SOC value is within the range of 88-95; insufficient power means that the battery SOC value is within the range of 0-75; excess power means that the battery SOC value is within the range of 95-100.

[0053] Application scenario 1: Based on this information, DFCU analyzes and finds that the vehicle is in a braking condition and the battery is low on power. The control strategy is to control the generator to generate electricity at a voltage level of 28.8V to charge the battery.

[0054] Application scenario 2: Based on this information, DFCU analyzes and finds that the vehicle is in an accelerating condition and the battery has excess power, so the control strategy is to stop the generator from generating electricity.

[0055] Driving safety management refers to the process of comprehensively analyzing information such as surrounding vehicles, road conditions, and vehicle quality to determine whether to brake, activate auxiliary braking, trigger sound and light warnings to the driver, and control driving safety.

[0056] Application scenario 1: DFCU calculates through the built-in module that the vehicle is fully loaded, there is a long downhill distance ahead and the downhill distance is 11,200 meters, and there are vehicles in the lane ahead and the adjacent lane. Based on this information analysis and decision-making, the control strategy is to continue driving in the lane, the system automatically takes over the driver's accelerator pedal mode, activates the auxiliary brake, and activates the automatic cruise control. The three are jointly controlled to keep the distance to the vehicle in front within 100-120 meters to ensure driving safety. When the vehicle's downhill distance is 100 meters, the voice reminds the driver to take over the accelerator, turn off the auxiliary brake, and automatically cruise, ending this application scenario and entering the next application scenario.

[0057] Vehicle lighting management refers to adapting the driver to different user scenarios such as work, rest, and entertainment, and providing vehicle lighting management.

[0058] Application scenario 1: In driving scenarios such as vehicles entering or exiting tunnels, turning at night, or when light changes significantly, DFCU detects through sunlight sensors and steering sensors that the light intensity is lower or higher than the set threshold, automatically turning on or off the high / low beam lights, and driving the high / low beam lights to steer according to the change in the turning angle, thereby improving the driving field of view and the vehicle's adaptability to the environment.

[0059] Application scenario 2: In the summer evening, the vehicle stops at the station to rest and play music to relax. The DFCU automatically drives the ambient lights and interior lights around the vehicle to change brightness and color according to the music, and automatically turns on the air conditioner to control the indoor temperature within the range of 26±1 degrees, achieving the purpose of physical and mental comfort for the driver and passengers.

[0060] The integrated human-computer interaction mode means that users can experience the comfort, convenience and sense of technology of driving through 5G device interconnection, Bluetooth cordless phone, voice control, video, touch screen and other functions.

[0061] Application scenario 1: During driving, there is sudden thunder and lightning in summer. The driver and passengers send voice control commands to close the windows and sunroof, turn on the air conditioner to adjust the temperature to 26 degrees, and turn on the high beam. After receiving the command, the DFCU closes all the windows and sunroof of the car in turn, turns on the air conditioner to adjust the indoor temperature to about 26 degrees, and turns on the high beam.

[0062] Application scenario 2: During driving, the driver drives in the direction facing the rising sun, which affects the driving vision. The driver sends a command to open the sunshade 35mm downward through voice control, and the DFCU drives the sunshade to move downward to the specified position.

[0063] The numerical settings in this specific embodiment can be adaptively set according to the actual vehicle performance and application scenarios.

[0064] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0065] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

[0066] It should be noted that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions described herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art.

Claims

1. A commercial vehicle domain fusion control system, characterized by: It includes a fusion control domain module, a power control domain module, a chassis control domain module and an intelligent driving domain module; the fusion control domain module is used to receive vehicle status information, classify and integrate functions according to user scenarios, and issue control instructions based on vehicle status information to drive each actuator to act, thereby realizing vehicle economy management, vehicle power management, driving safety management, vehicle lighting management, and human-computer interaction integration functions; The fusion control domain module is also used to forward vehicle status information to the power control domain module, the chassis control domain module, and the intelligent driving domain module, and receive the collected vehicle status information and the generated control instructions from the power control domain module, the chassis control domain module, and the intelligent driving domain module; The power control domain module is used to control the working state of the vehicle power system based on the vehicle state information; The chassis control domain module is used to control the working state of the vehicle chassis system based on the vehicle state information; The intelligent driving domain module is used to realize the vehicle intelligent driving function based on the vehicle status information; The functions implemented by the fusion control domain module issuing control instructions to drive the actions of each actuator include but are not limited to: message routing, message integration processing, throttle control, engine start-stop control, cruise control, fan control, auxiliary brake control, gearbox selection and shifting, power take-off control, speed and torque limit control, clutch alarm, power management, AGS control, integrated indoor / outdoor lighting control, washing and wiper control, gas-electric horn control, differential control, power take-off control, window control, sunroof control, door lock control, rearview mirror adjustment control, body load control, adaptive wiper control, automatic headlight control, follow-up headlight AFS, tire pressure monitoring, seat adjustment control, steering wheel position adjustment control, keyless entry and one-button start control, real-time display of vehicle information, video monitoring, and voice control; The vehicle economy management refers to the fusion control domain module receiving the vehicle's load, road conditions, the vehicle ahead, and ambient temperature information during vehicle driving, calculating the throttle opening and outputting it, controlling the engine and electrical load to work in the best economic working area, and achieving the purpose of fuel saving and consumption reduction of the vehicle; The vehicle power management refers to the fusion control domain module judging the vehicle driving condition through the throttle opening, brake pedal, vehicle speed, and engine speed, and judging the battery status according to the battery power, and controlling the generator to generate electricity at different voltage levels according to the vehicle driving condition and battery status; The driving safety management refers to the process in which the fusion control domain module determines whether to brake, activate auxiliary braking, and trigger sound and light warnings to the driver based on surrounding vehicles, road conditions, and vehicle mass information during vehicle driving to control driving safety.

2. A system according to claim 1, characterized in that: The vehicle status information received by the fusion control domain module includes switch information, sensor information, wireless communication information, voice information, video information and interactive information from other control domain modules.

3. A system according to claim 1, characterized in that: The whole vehicle lighting management refers to the fusion control domain module adapting to the driver in different user scenarios to provide whole vehicle lighting management.

4. A system according to claim 1, characterized in that: The integrated human-computer interaction function refers to the interconnection of 5G devices, Bluetooth cordless phones, voice control, video, and touch screen functions.

5. A system according to claim 1, characterized in that: The fusion control domain module communicates with the power control domain module and the chassis control domain module via the CAN bus.

6. A system according to claim 1, characterized in that: The fusion control domain module communicates with the intelligent driving domain module via Ethernet.

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