Electronic control method for engine of truck with loading crane

Abstract

The invention relates to the technical field of electric control of diesel engines of commercial vehicles, and particularly discloses an electric control method of an engine of a truck with a loading crane, which comprises the following steps: S1, setting the speed limit of the whole truck to be 89 km / h based on laws and regulations; s2, engine exhaust braking is started, and linkage control is carried out on the functions of service braking, a clutch and cruising; s3, the idling speed of the engine is set to be 800 rpm, and the warm-up rotating speed is set to be 1200 rpm for control; s4, hard wire connection of an engine fan, a clutch pedal, a parking brake switch and a service brake switch is controlled; s5, engine aftertreatment DPF regeneration forbidding ON / OFF switching mode control is carried out; s6, remotely starting normally closed relay control by the engine; s7, starting a remote accelerator function of the engine, and keeping the rotating speed of 1600 rpm for control; the electric control parameter setting diversity of the diesel engine of the commercial vehicle is improved, the operation requirements and specifications of a hoisting and transporting vehicle are met, the economical efficiency is better, and operation is more stable.

Description

Technical Field

[0001] This invention relates to the field of electronic control technology for commercial vehicle diesel engines, and specifically to an electronic control method for the engine of a truck-mounted crane. Background Technology

[0002] With the acceleration of urbanization and the growth of infrastructure investment projects in my country, the demand for various special-purpose vehicles is increasing year by year, especially truck-mounted cranes, which can simultaneously perform loading, unloading, and transportation functions, not only improving vehicle uptime but also reducing cargo transportation costs. Therefore, the market share of truck-mounted cranes in the special-purpose vehicle market is also increasing year by year. However, due to the varying operating conditions of truck-mounted cranes, the power output performance required by drivers differs under different working conditions.

[0003] Currently, all vehicles are set to fixed parameters at the factory, meaning that crane trucks have the same settings as ordinary trucks for speed limits, engine braking control, cruise control, and engine idling speed. This leads to crane trucks being able to exceed speed limits, which is illegal and poses safety hazards. When crane trucks are performing lifting operations, the engine is idling, which causes unstable idling speed, affects lifting efficiency, and results in insufficient lifting weight, thus impacting the economic efficiency of crane truck operations.

[0004] Therefore, there is an urgent need to design an electronic control method for the engine of a truck-mounted crane to solve the problems of unstable operation and poor lifting effect caused by the inability of the parameter settings of existing cranes to change with the vehicle model. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide an electronic control method for the engine of a truck-mounted crane.

[0006] The technical solution adopted by this invention to solve its technical problem is: an electronic control method for the engine of a truck-mounted crane, comprising the following steps:

[0007] S1. Based on regulations, the vehicle speed limit is set at 89 km / h;

[0008] S2, Engine exhaust brake activation, and linkage control with service brake, clutch, and cruise functions;

[0009] S3. Set the engine idle speed to 800 rpm and the warm-up speed to 1200 rpm for control.

[0010] S4. The engine fan, clutch pedal, parking brake switch, and service brake switch are controlled by hard-wired connections.

[0011] S5. Engine aftertreatment DPF regeneration prohibition ON / OFF switch mode control;

[0012] S6. Engine remote start normally closed relay control;

[0013] S7: Engine remote throttle function is enabled, and the engine speed is maintained at 1600 rpm.

[0014] Preferably, the vehicle speed limit in step S1 includes three maximum speeds: maximum combined speed, full throttle speed, and maximum cruising speed, all of which are set to 89 km / h.

[0015] Preferably, the engine exhaust brake activation and linkage control with the service brake, clutch, and cruise functions in step S2 include: setting the engine brake control type to exhaust brake 0, setting the minimum vehicle speed during engine braking to 0 km / h, setting the engine brake delay time to 0S, setting the linkage function between service brake and engine brake to off (N), setting the clutch pedal release engine brake function to on (Y), setting the linkage function between cruise control and engine brake to on (Y), setting the engine brake de-cruise function to on (Y), setting the service brake switch to on (Y), and setting the parking brake switch to on (Y).

[0016] Preferably, the control step S3, which sets the engine idle speed to 800 rpm and the warm-up speed to 1200 rpm, includes: setting the engine low idle speed to 800 rpm, setting the fast idle warm-up function to "on" (Y), and setting the fast idle warm-up speed to 1200 rpm.

[0017] Preferably, the hard-wired connection control of the engine fan, clutch pedal, parking brake switch, and service brake switch in step S4 includes: setting the multi-channel fan control switch to hard-wired connection 0, setting the multi-channel clutch pedal position switch to hard-wired connection 0, setting the multi-channel parking brake switch to hard-wired connection 0, and setting the multi-channel service brake switch to hard-wired connection 0.

[0018] Preferably, the engine aftertreatment DPF regeneration prohibition ON / OFF switch mode control in step S5 includes: setting the urea pipeline heating type to form 5 and setting the DPF regeneration prohibition switch mode to normal ON / OFF switch off N.

[0019] Preferably, the engine remote start normally closed relay control in step S6 includes: setting the remote start function to open (Y) and setting the remote start relay type to normally closed (I).

[0020] Preferably, the engine remote throttle function activation and speed maintenance at 1600 rpm in step S7 includes: setting the maximum engine speed activation function to on (Y), setting the switch control maximum engine speed value to 1600 rpm, setting the throttle interlock function to off (N), setting the remote throttle pedal or joystick function to on (Y), and setting the remote throttle pedal or joystick mode to mode 0.

[0021] Preferably, the engine electronic control method of the truck-mounted crane is converted into an engine-recognizable electronic control function program according to a fixed format, and the truck-mounted crane electronic control function program is applied to the truck-mounted crane model.

[0022] The present invention has the following beneficial effects:

[0023] The present invention designs an electronic control method for the engine of a truck-mounted crane, which converts the engine electronic control function program into a fixed format and finally combines them into an electronic control function program for truck-mounted cranes. This improves the diversity of electronic control parameter settings for commercial vehicle diesel engines, better meets the operational needs and standards of cranes, improves operational economy, enhances operational stability, and increases customer satisfaction. Attached Figure Description

[0024] Figure 1 It is a parameter setting program diagram of the engine electronic control function program application and conversion into a fixed format.

[0025] Figure 2 This is a diagram illustrating the application of electronic control functions to meet the requirement of an engine speed limit of 89 km / h for the entire vehicle.

[0026] Figure 3 It is an application diagram of the electronic control function program that links the engine exhaust braking type with the functions of service brake, clutch, and cruise control.

[0027] Figure 4 This is a diagram showing the application of the electronic control program for engine idling at 800 rpm and warm-up at 1200 rpm.

[0028] Figure 5 It is a diagram showing the application of the hard-wired electronic control functions of the engine fan, clutch pedal, parking brake switch, and service brake switch.

[0029] Figure 6 This is a diagram illustrating the application of the electronic control function program for the engine aftertreatment DPF regeneration ON / OFF switch mode.

[0030] Figure 7 This is a diagram illustrating the application of the normally closed relay electronic control function for remote engine start.

[0031] Figure 8This is a diagram illustrating the application of the electronic control function to remotely activate the engine throttle and maintain a speed of 1600 rpm.

[0032] Figure 9 This is a diagram showing the application of the electronic control functions of a truck-mounted crane.

[0033] In the diagram: 1 - Fixed program header; 2 - Specific parameter settings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Example 1.

[0036] like Figure 1 As shown, a method for controlling the engine of a truck-mounted crane transport vehicle is described. The engine control function program is converted into a fixed format, which consists of two parts: a fixed program header 1 and specific parameter settings 2.

[0037] like Figure 2 As shown, based on the regulatory requirement of a vehicle speed limit of 89 km / h, the maximum combined speed (13590), full throttle speed (10000), and maximum cruising speed (10090) of the vehicle are all set to 89 km / h.

[0038] like Figure 3 As shown, based on the functional linkage control requirements of engine exhaust braking activation, service brake, clutch, and cruise control, the engine brake control type (12790) is set to exhaust brake 0, the minimum vehicle speed during engine braking (11540) is set to 0km / h, the engine brake delay time (11542) is set to 0S, the service brake and engine brake linkage function (21251) is set to off N, the clutch pedal release engine brake function (21253) is set to on Y, the cruise control and engine brake linkage function (20601) is set to on Y, the engine brake cruise control function (54577) is set to on Y, the service brake switch (50070) is set to on Y, and the parking brake switch (50005) is set to on Y.

[0039] like Figure 4 As shown, based on the engine idle speed control requirement of 800rpm and warm-up speed of 1200rpm, the engine low idle speed setting (10030) is set to 800rpm, the fast idle warm-up function (25281) is set to Y, and the fast idle warm-up speed (14570) is set to 1200rpm.

[0040] like Figure 5 As shown, based on the hard-wired connection control requirements of the engine fan, clutch pedal, parking brake switch, and service brake switch, the multi-channel fan control switch (30034) is set to hard-wired connection 0, the multi-channel clutch pedal position switch (30010) is set to hard-wired connection 0, the multi-channel parking brake switch (14460) is set to hard-wired connection 0, and the multi-channel service brake switch (30008) is set to hard-wired connection 0.

[0041] like Figure 6 As shown, to meet the control requirements of the DPF regeneration prohibition ON / OFF switch mode for engine aftertreatment, the urea pipeline heating type (51200) is set to form 5, and the DPF regeneration prohibition switch mode (54115) is set to normal ON / OFF switch off N.

[0042] like Figure 7 As shown, the engine remote start normally closed relay control requirement is to set the remote start function (51390) to open (Y) and the remote start relay type (50535) to normally closed (1).

[0043] like Figure 8 As shown, the remote throttle function of the engine is enabled, and the speed is maintained at 1600 rpm. The maximum engine speed function (15181) is set to Y, the maximum engine speed value controlled by the switch (15182) is set to 1600 rpm, the throttle interlock function (21221) is set to N, the remote throttle pedal or joystick function (21181) is set to Y, and the remote throttle pedal or joystick mode (40220) is set to mode 0.

[0044] like Figure 9 As shown, the electronic control method of the engine of the truck-mounted crane is converted into an electronic control function program that the engine can recognize according to a fixed format, and the electronic control function program of the truck-mounted crane is applied to the truck-mounted crane model.

[0045] This invention is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

[0046] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A method for electronic control of an engine in a truck-mounted crane, characterized in that, Includes the following steps: S1. Based on regulations, the vehicle speed limit is set at 89 km / h; S2, Engine exhaust brake activation, and linkage control with service brake, clutch, and cruise functions; S3. Set the engine idle speed to 800 rpm and the warm-up speed to 1200 rpm for control. S4. The engine fan, clutch pedal, parking brake switch, and service brake switch are controlled by hard-wired connections. S5. Engine aftertreatment DPF regeneration prohibition ON / OFF switch mode control; S6. Engine remote start normally closed relay control; S7: Engine remote throttle function is enabled, and the engine speed is maintained at 1600 rpm.

2. The electronic control method for the engine of a truck-mounted crane as described in claim 1, characterized in that, The vehicle speed limit in step S1 includes three maximum speeds: maximum combined speed, full throttle speed, and maximum cruising speed, all set to 89 km / h.

3. The electronic control method for the engine of a truck-mounted crane as described in claim 1, characterized in that, The steps S2, including enabling engine exhaust braking and linking it with the functions of service brake, clutch, and cruise control, include: setting the engine brake control type to exhaust brake 0, setting the minimum vehicle speed during engine braking to 0 km / h, setting the engine brake delay time to 0 seconds, setting the linkage function between service brake and engine brake to off (N), setting the clutch pedal release engine brake function to on (Y), setting the cruise control linkage function between cruise control and engine brake to on (Y), setting the engine brake de-cruise function to on (Y), setting the service brake switch to on (Y), and setting the parking brake switch to on (Y).

4. The electronic control method for the engine of a truck-mounted crane as described in claim 1, characterized in that, The control steps in step S3, which set the engine idle speed to 800 rpm and the warm-up speed to 1200 rpm, include: setting the engine low idle speed to 800 rpm, setting the fast idle warm-up function to "on" (Y), and setting the fast idle warm-up speed to 1200 rpm.

5. The electronic control method for the engine of a truck-mounted crane transport vehicle according to claim 1, characterized in that, The hard-wired control of the engine fan, clutch pedal, parking brake switch, and service brake switch in step S4 includes: setting the multi-channel fan control switch to hard-wired connection 0, setting the multi-channel clutch pedal position switch to hard-wired connection 0, setting the multi-channel parking brake switch to hard-wired connection 0, and setting the multi-channel service brake switch to hard-wired connection 0.

6. The electronic control method for the engine of a truck-mounted crane as described in claim 1, characterized in that, The engine aftertreatment DPF regeneration prohibition ON / OFF switch mode control in step S5 includes: setting the urea pipeline heating type to form 5 and setting the DPF regeneration prohibition switch mode to normal ON / OFF switch off N.

7. The electronic control method for the engine of a truck-mounted crane according to claim 1, characterized in that, The engine remote start normally closed relay control in step S6 includes: setting the remote start function to open (Y) and setting the remote start relay type to normally closed (1).

8. The electronic control method for the engine of a truck-mounted crane according to claim 1, characterized in that, The activation of the remote throttle function in step S7, and the control of maintaining the engine speed at 1600 rpm, includes: setting the maximum engine speed activation function to "on" (Y), setting the maximum engine speed value controlled by the switch to 1600 rpm, setting the throttle interlock function to "off" (N), setting the remote throttle pedal or joystick function to "on" (Y), and setting the remote throttle pedal or joystick mode to mode 0.

9. The electronic control method for the engine of a truck-mounted crane transport vehicle according to any one of claims 1-8, characterized in that, The aforementioned engine electronic control method for truck-mounted cranes is converted into an engine-recognizable electronic control function program according to a fixed format, and the truck-mounted crane electronic control function program is applied to the truck-mounted crane model.

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