Commercial vehicle chassis expansion control module

Abstract

The invention discloses a control module for chassis expansion of a commercial vehicle. The function definition of chassis electric control modules is as follows: chassis electric control modules 1-3 are used for driving and signal acquisition of electric devices in a chassis front area, a chassis middle area and a chassis tail area respectively; through distribution of power supply I / O ports, functions of each chassis electric control module are defined. According to the technical scheme, corresponding control functions are automatically identified through distribution of the power ports. The chassis electric control module is designed according to full functions, and software with different area functions is fully integrated; the modes are automatically switched through the input of a power supply pin; the commercial vehicle chassis adopts a control module infinite expansion mode, so that the research and development investment is reduced, and meanwhile, the intelligence and reliability of a product are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of commercial vehicle control, and more specifically, relates to a control module for chassis expansion of a commercial vehicle. Background Art

[0002] With the continuous development of commercial vehicle electronic and electrical technology, commercial vehicle chassis electrical components are gradually developing towards intelligent and modular technology routes; the number of current chassis electrical components is increasing, distributed in the front, middle and rear areas of commercial vehicle chassis, and the input signals of each electrical component are different, including switch quantity, analog quantity, voltage and other signals, resulting in the need to develop chassis electronic control modules with different functions to collect signals and output control of corresponding actuators. Therefore, the problems and defects of the existing technology are: high R&D and production costs; low product intelligence and reliability.

[0003] Using keywords such as "commercial vehicle; chassis; control; module" to search existing public technical literature, the following search results were obtained:

[0004] 1. Chinese patent document: "New energy commercial vehicle intelligent driving wire-controlled chassis control system and control method", patent (application) number: 202011623339.9; the technical solution recorded is:

[0005] "The intelligent driving-by-wire chassis control system for new energy commercial vehicles, the intelligent driving control module communicates with EPS, EPB, SCU / TCU, VCU, IC, EBS and BCM through the CAN bus; the CAN bus adopts the standard SPN protocol specified in SAEJ1939-71. The control methods include control of the engine throttle, control of the gearbox gear, control of the braking system, steering control and control of the chassis electrical appliances";

[0006] The technical effects recorded are:

[0007] "The present invention simplifies the system complexity, improves the system reliability, and saves precious installation space in the cab. It solves the problems of the prior art that the control is carried out by simulating the relevant actions of the driver, which has high modification costs, complex structures, great safety hazards, and poor adaptability. It eliminates a large amount of electromechanical system design work required for vehicle model modification in the past. Only some communication protocols need to be changed to realize the transplantation of intelligent driving systems between different vehicle models, and it has strong adaptability."

[0008] 2. Chinese patent document: "A parking redundant control system for a commercial vehicle wire-controlled chassis", patent (application) number: 202411032452.8; the technical solution recorded is:

[0009] “Parking redundant control system for commercial vehicle wire-controlled chassis. The air inlet of the EPB valve module is connected to the air source pipeline, the air source pipeline is connected to the air supply source, the module air outlet of the EPB valve module is connected to the spring parking control air chamber, the module fourth port of the EPB valve module is connected to the solenoid valve second port of the solenoid valve, and the solenoid valve is also provided with a solenoid valve third port”;

[0010] The technical effects recorded are:

[0011] "The control system has a simple structure. When the EPB cannot automatically park the vehicle, it can reliably ensure that the parking brake is automatically activated, realize the parking brake, and play the role of emergency parking, ensuring the safe parking of the vehicle and protecting the safety of the vehicle and the drivers and passengers."

[0012] However, the technical solutions recorded in the above-mentioned technical documents and the related technical solutions currently in public application have not been able to solve the problems and defects existing in the prior art, such as "high R&D and production costs" and "low product intelligence and reliability". Summary of the invention

[0013] The present invention provides a control module for chassis expansion of a commercial vehicle, the purpose of which is to reduce product production and research and development costs and improve product intelligence and reliability.

[0014] In order to achieve the above object, the technical solution adopted by the present invention is:

[0015] The commercial vehicle chassis extended control module of the present invention comprises a front area, a middle area and a rear area; the extended control module is integrated into three chassis electronic control modules, namely chassis electronic control module 1, chassis electronic control module 2 and chassis electronic control module 3; the three chassis electronic control modules are respectively connected to the chassis CAN-Bus; the extended control module automatically identifies the corresponding control functions of the three chassis electronic control modules through power port allocation;

[0016] The functional definitions of the three chassis electronic control modules are:

[0017] Chassis electronic control module 1 is used for driving and signal collection of electrical components in the front area of ​​the chassis;

[0018] Chassis electronic control module 2 is used for driving and signal collection of electrical components in the middle area of ​​the chassis;

[0019] Chassis electronic control module 3 is for driving and signal collection of electrical components in the rear area of ​​the chassis;

[0020] The functions of each chassis electronic control module are defined by allocating power I / O ports.

[0021] The Pin port of the extended control module includes Pin1-Pin6; Pin1-Pin5 are defined as the input of the positive pole of the power supply through the wiring harness connector, Pin6 is the negative pole of the power supply, and different functions are allocated.

[0022] Function allocation of one port of the chassis electronic control module: the loop formed by Pin1 and Pin6 is defined by the chassis electronic control module function as the chassis front mode, which mainly drives the front lights and the front sensor signal collection.

[0023] Function allocation of the two ports of the chassis electronic control module: The loop formed by Pin2 and Pin6 is defined by the chassis electronic control module as the chassis middle mode, which mainly drives the feedback switch signal collection of the gas pipeline solenoid valve and the oil level sensor. The loop formed by Pin3 and Pin6 is defined by the chassis electronic control module as the upper body mode, which mainly collects the output power signal of the upper body electrical components.

[0024] Function allocation of the three ports of the chassis electronic control module: the loop formed by Pin4 and Pin6 is defined by the chassis electronic control module function as the chassis tail mode, which mainly drives the tail lights and feedback switch signal collection.

[0025] The Pin port of the extended control module also includes Pin7-Pin94; ​​the PIN port of the chassis electronic control module plays different functions by switching in different modes; the same PIN has different functions in different modes.

[0026] The Pin10 port is defined as the front fog light in the chassis front mode, the upper fog light in the chassis middle mode, and the rear fog light in the chassis rear mode.

[0027] The Pin11 port is defined as the liquid level sensor feedback switch in the front chassis mode; it is defined as the blockage pressure sensor switch in the middle chassis mode; it is defined as the inter-axle differential lock feedback switch in the rear chassis mode;

[0028] The Pin12 port is defined as the air pressure sensor input signal in the front chassis mode, as the LNG tank liquid level signal in the middle chassis mode, and as a reserved function in the rear chassis mode.

[0029] The present invention adopts the above technical solution, and automatically identifies the corresponding control function through the power port allocation. The chassis electronic control module is designed with full functions, and the software of different regional functions is fully integrated; through the power pin input, the mode is automatically switched and different functions are realized; the commercial vehicle chassis adopts the control module unlimited expansion mode, which reduces R&D investment and improves the intelligence and reliability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The contents shown in the attached drawings are briefly described as follows:

[0031] Figure 1 It is the topological diagram of the chassis electronic control module of the present invention;

[0032] Figure 2 It is a schematic diagram of the port structure of the chassis control module of the present invention. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0034] like Figure 1 , Figure 2 The structure of the present invention is a control module for expanding a commercial vehicle chassis, wherein the commercial vehicle chassis includes a front area, a middle area and a rear area.

[0035] In order to solve the problems existing in the prior art and overcome its defects, to achieve the invention purpose of reducing product production and R&D costs, and to improve the intelligence and reliability of products, the technical solution adopted by the present invention is:

[0036] like Figure 1 As shown, the control module for the extended chassis of a commercial vehicle of the present invention integrates three chassis electronic control modules, namely, chassis electronic control module 1, chassis electronic control module 2 and chassis electronic control module 3; the three chassis electronic control modules are respectively connected to the chassis CAN-Bus; the extended control module automatically identifies the corresponding control functions of the three chassis electronic control modules through power port allocation;

[0037] The functional definitions of the three chassis electronic control modules are:

[0038] Chassis electronic control module 1 is used for driving and signal collection of electrical components in the front area of ​​the chassis;

[0039] Chassis electronic control module 2 is used for driving and signal collection of electrical components in the middle area of ​​the chassis;

[0040] Chassis electronic control module 3 is for driving and signal collection of electrical components in the rear area of ​​the chassis;

[0041] The functions of each chassis electronic control module are defined by allocating power I / O ports.

[0042] The present invention is a full-function chassis electronic control module, which automatically identifies the corresponding control function through power port allocation. In order to reduce R&D investment, the unlimited expansion mode of commercial vehicle chassis control module is adopted, while improving the intelligence and reliability of the product. The chassis electronic control module is designed with full functions, fully integrating the software of different regional functions, and automatically switching modes through power pin input.

[0043] like Figure 2 As shown: The input of the positive power supply of Pin1-Pin5 is defined through the wiring harness connector, and the chassis electronic control module automatically identifies the corresponding function.

[0044] The function allocation is shown in the following table:

[0045]

[0046] The Pin port of the extended control module includes Pin1-Pin6; Pin1-Pin5 are defined as the input of the positive pole of the power supply through the wiring harness connector, Pin6 is the negative pole of the power supply, and different functions are allocated.

[0047] The specific circuit is as follows:

[0048] Function allocation of one port of the chassis electronic control module: the loop formed by Pin1 and Pin6 is defined by the chassis electronic control module function as the chassis front mode, which mainly drives the front lights and the front sensor signal collection.

[0049] Function allocation of the two ports of the chassis electronic control module: The loop formed by Pin2 and Pin6 is defined by the chassis electronic control module as the chassis middle mode, which mainly drives the feedback switch signal collection of the gas pipeline solenoid valve and the oil level sensor. The loop formed by Pin3 and Pin6 is defined by the chassis electronic control module as the upper body mode, which mainly collects the output power signal of the upper body electrical components.

[0050] Function allocation of the three ports of the chassis electronic control module: the loop formed by Pin4 and Pin6 is defined by the chassis electronic control module function as the chassis tail mode, which mainly drives the tail lights and feedback switch signal collection.

[0051] The Pin ports of the extended control module also include Pin7-Pin94; ​​the functions of each I / O port are defined as follows:

[0052] The PIN port of the chassis electronic control module plays different functions by switching in different modes, that is, the same PIN has different functions in different modes; as shown in the following table;

[0053]

[0054] From the table we can see that:

[0055] The Pin10 port is defined as the front fog lamp in the chassis front mode, the upper fog lamp in the chassis middle mode, and the rear fog lamp in the chassis rear mode.

[0056] The Pin11 port is defined as the liquid level sensor feedback switch in the front chassis mode, the blockage pressure sensor switch in the middle chassis mode, and the inter-axle differential lock feedback switch in the rear chassis mode.

[0057] The Pin12 port is defined as the air pressure sensor input signal in the front chassis mode, the LNG tank liquid level signal in the middle chassis mode, and the reserved function in the rear chassis mode.

[0058] Ports above Pin13 have standby functions in each mode.

[0059] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A control module for chassis expansion of a commercial vehicle, wherein the commercial vehicle comprises a front area, a middle area and a rear area, characterized in that: The extended control module is integrated into three chassis electronic control modules, namely chassis electronic control module 1, chassis electronic control module 2 and chassis electronic control module 3; the three chassis electronic control modules are respectively connected to the chassis CAN-Bus; the extended control module automatically identifies the corresponding control functions of the three chassis electronic control modules through power port allocation; The functional definitions of the three chassis electronic control modules are: Chassis electronic control module 1 is used for driving and signal collection of electrical components in the front area of ​​the chassis; Chassis electronic control module 2 is used for driving and signal collection of electrical components in the middle area of ​​the chassis; Chassis electronic control module 3 is for driving and signal collection of electrical components in the rear area of ​​the chassis; The functions of each chassis electronic control module are defined by allocating power I / O ports.

2. The control module for chassis expansion of a commercial vehicle according to claim 1, characterized in that: The Pin port of the extended control module includes Pin1-Pin6; Pin1-Pin5 are defined as the input of the positive pole of the power supply through the wiring harness connector, Pin6 is the negative pole of the power supply, and different functions are allocated.

3. The control module for chassis expansion of a commercial vehicle according to claim 2, characterized in that: Function allocation of one port of the chassis electronic control module: the loop formed by Pin1 and Pin6 is defined by the chassis electronic control module function as the chassis front mode, which mainly drives the front lights and the front sensor signal collection.

4. The control module for chassis expansion of a commercial vehicle according to claim 2, characterized in that: Function allocation of the two ports of the chassis electronic control module: the loop formed by Pin2 and Pin6 is defined by the chassis electronic control module function as the chassis middle mode, which mainly drives the feedback switch signal collection of the air pipeline solenoid valve and the oil level sensor.

5. The control module for chassis expansion of a commercial vehicle according to claim 2, characterized in that: Function allocation of the two ports of the chassis electronic control module: the loop formed by Pin3 and Pin6 is defined as the upper body mode by the chassis electronic control module function, which is mainly used for collecting the output power signal of the upper body electrical device.

6. The control module for chassis expansion of a commercial vehicle according to claim 2, characterized in that: Function allocation of the three ports of the chassis electronic control module: the loop formed by Pin4 and Pin6 is defined by the chassis electronic control module function as the chassis tail mode, which mainly drives the tail lights and feedback switch signal collection.

7. The control module for chassis expansion of a commercial vehicle according to claim 2, characterized in that: The Pin port of the extended control module also includes Pin7-Pin94; ​​the PIN port of the chassis electronic control module plays different functions by switching in different modes; the same PIN has different functions in different modes.

8. The control module for chassis expansion of a commercial vehicle according to claim 7, characterized in that: The Pin10 port is defined as the front fog light in the chassis front mode, the upper fog light in the chassis middle mode, and the rear fog light in the chassis rear mode.

9. The control module for chassis expansion of a commercial vehicle according to claim 7, characterized in that: The Pin11 port is defined as the liquid level sensor feedback switch in the front chassis mode, as the blockage pressure sensor switch in the middle chassis mode, and as the inter-axle differential lock feedback switch in the rear chassis mode.

10. The control module for chassis expansion of a commercial vehicle according to claim 7, characterized in that: The Pin12 port is defined as the air pressure sensor input signal in the front chassis mode, as the LNG tank liquid level signal in the middle chassis mode, and as a reserved function in the rear chassis mode.

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