Method, system and control device for remote engine load starting

Abstract

The present application discloses a method, system and control device for remote on-load starting of an engine. The method comprises: when the control device receives an on-load starting instruction, it sends a working instruction to the DCDC module, and determines whether the torque output by the first power unit meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power unit meets the first target torque and the DCDC module is in a working state, a starting instruction is sent to the second power unit to control the second power unit to start on-load. The present application can realize remote on-load starting of the engine by providing torque through the first power unit and starting the second power unit on-load, and the discharge current is jointly provided by the DCDC module, which can increase the life of the battery.

Description

Technical Field

[0001] The present application relates to the technical field of remote debugging of construction machinery, and in particular to a method, system and control device for remote on-load starting of an engine. Background Art

[0002] At present, common engineering vehicles need to be remotely controlled by remote controllers when working, and during breaks or waiting for materials, operators often control the vehicle to shut down to save fuel. However, when the vehicle needs to be restarted, another operator is often required to manually start the engine in neutral in the cab and then shift gears before restarting the operation. The entire process of shutting down and restarting is relatively complicated and requires the cooperation of two people. In the prior art, the motor assists starting in neutral. However, this method cannot realize the remote start of the vehicle with gear through the remote control. An additional person is required to step on the clutch pedal in the cab, start and then shift gears. At the same time, when the low-voltage battery is low in power, the vehicle cannot be started even with motor assistance. In addition, frequent starting will also cause the low-voltage battery to frequently discharge with large currents, and the service life will be much shorter than normal. Therefore, the traditional technical solution has the problem that remote load starting cannot be achieved and the battery life is low. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a method, system and control device for remote engine start-up, so as to solve the problem that remote engine start-up cannot be achieved and the battery life is low in the prior art.

[0004] In order to achieve the above-mentioned object, the first aspect of the present application provides a method for remote engine load starting, which is applied to a control device, the control device communicates with a first power device and a second power device respectively, the first power device includes a DCDC module, and the method includes:

[0005] When receiving the load start command, send the working command to the DCDC module;

[0006] Determining whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state;

[0007] When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load.

[0008] In the embodiment of the present application, the first power device further includes a motor controller and a booster motor, the motor controller communicates with the booster motor, and the method further includes:

[0009] The torque mode command is sent to the motor controller to control the output torque of the power assist motor through the motor controller.

[0010] In the embodiment of the present application, the second power device includes an engine controller, an engine, a starter and a low-voltage battery, the engine is connected to the engine controller and the starter respectively, the low-voltage battery is connected to the engine controller, the engine and the starter respectively, and sending a start command to the second power device to control the second power device to start with load includes:

[0011] Sending a start command to the engine controller to control the starter to connect to the engine through the engine controller;

[0012] The starter is driven by a low-voltage battery to rotate, thereby driving the engine to rotate;

[0013] Determine whether the engine speed is greater than the starting speed;

[0014] When the engine speed is greater than the starting speed, it is determined that the engine load start is successful.

[0015] In an embodiment of the present application, the method further includes:

[0016] Determine whether the time for the starter to drive the engine to rotate exceeds a preset time;

[0017] When the dragging time exceeds the preset time, the starter is controlled to disengage from the engine.

[0018] In an embodiment of the present application, the method further includes:

[0019] When the engine is successfully started with load, the torque of the first power device is controlled to be reduced to a second target torque, wherein the second target torque is less than the first target torque;

[0020] Send a shutdown command to the DCDC module.

[0021] A second aspect of the present application provides a control device, comprising:

[0022] a memory configured to store instructions; and

[0023] The processor is configured to call instructions from the memory and implement the above-mentioned method for remote engine start when executing the instructions.

[0024] A third aspect of the present application provides a system for remote engine start-up, comprising:

[0025] According to the control device described above;

[0026] a first power device in communication with the control device and configured to output torque according to a torque mode command sent by the control device;

[0027] The second power device communicates with the control device and the first power device respectively, and is configured to perform load starting according to the starting instruction sent by the control device and the torque provided by the first power device.

[0028] In an embodiment of the present application, the first power device includes:

[0029] The DCDC module is configured to output current;

[0030] A motor controller configured to control the output torque of the power assist motor according to the command of the control device;

[0031] The power assist motor communicates with the motor controller and is configured to output torque according to a control instruction of the motor controller;

[0032] The power battery is connected to the DCDC module and the motor controller respectively, and is configured to provide current to the DCDC module and the motor controller.

[0033] In the embodiment of the present application, the second power device includes:

[0034] an engine controller configured to send control commands to the engine and the starter;

[0035] a low voltage battery configured to provide a power source;

[0036] The starter is connected to the engine controller and the low-voltage battery respectively, and is configured to rotate according to the control signal and drive the engine to rotate;

[0037] The engine, in communication with the engine controller and connected to the starter, is configured to rotate in accordance with the rotation of the starter.

[0038] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, the instructions being used to enable a machine to execute the above-mentioned method for remote engine on-load starting.

[0039] Through the above technical solution, when the control device receives the load start instruction, it sends a work instruction to the DCDC module, and determines whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load, so that remote load start can be achieved. And the discharge current is provided by the DCDC module, which can improve the battery life.

[0040] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0042] Figure 1 A flowchart of a method for remote engine load starting according to an embodiment of the present application is schematically shown;

[0043] Figure 2 A flowchart of a method for remote engine load starting according to an embodiment of the present application is schematically shown;

[0044] Figure 3 The structure block diagram of a control device according to a specific embodiment of the present application is schematically shown;

[0045] Figure 4 A schematic diagram of a system for remote engine load starting according to an embodiment of the present application is shown;

[0046] Figure 5 A schematic diagram of a structure of a first power device according to an embodiment of the present application is shown;

[0047] Figure 6 A schematic diagram of a second power device according to an embodiment of the present application is shown;

[0048] Figure 7 The structure of a system for remote engine load starting according to a specific embodiment of the present application is schematically shown.

[0049] Description of Reference Numerals

[0050] 410 Control device 420 First power device

[0051] 421 DCDC module 422 Motor controller

[0052] 423 Power motor 424 Power battery

[0053] 430 Second power unit 431 Engine controller

[0054] 432 Low voltage battery 433 Starter

[0055] 434 Engine 710 Control System

[0056] 720 First Power System 721 DCDC

[0057] 722 Power Battery 723 Motor Controller

[0058] 724 Power-assisted motor 730 Second power system

[0059] 731 Low voltage battery 732 ECU

[0060] 733 Generator 734 Starter

[0061] 735 Engine 740 Transmission

[0062] 750 Power Coupling Device DETAILED DESCRIPTION

[0063] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0064] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0065] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0066] Figure 1 A flowchart of a method for remote engine load starting according to an embodiment of the present application is schematically shown. Figure 1As shown, an embodiment of the present application provides a method for remote on-load starting of an engine, which is applied to a control device, and the control device communicates with a first power device and a second power device respectively. The first power device includes a DCDC module. The method may include the following steps.

[0067] Step 101: upon receiving a load start instruction, sending a work instruction to a DCDC module;

[0068] Step 102, determining whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state;

[0069] Step 103: When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load.

[0070] In an embodiment of the present application, the control device can communicate with the first power device and the second power device. The first power device can provide assist torque for the second power device to reduce the starter load. The first power device may also include a DCDC module, which refers to a device that converts electrical energy of one voltage value into electrical energy of another voltage value in a DC circuit, and can provide electrical energy in conjunction with a low-voltage battery. By increasing the voltage value, the operating current of the starter and the output current of the low-voltage battery can be reduced to achieve the purpose of increasing the life of the starter and the low-voltage battery. The second power device refers to a device responsible for executing the engine starting work. When the control device receives a remote load start command from the remote control, it sends a work command to the DCDC module to put the DCDC module into a working state.

[0071] In an embodiment of the present application, after the first power device outputs torque, it is determined whether the torque output by the first power device meets the first target torque. The first target torque refers to a pre-set power-assisting target torque. When determining the first target torque, when the gearbox is in the neutral position, the torque T_d provided by the power-assisting motor is continuously increased until the power-assisting motor starts to rotate T_d1, this torque T_dmax. At this power-assisting torque value, it can be ensured that the power-assisting torque reaches the maximum value, and it can also be ensured that the power-assisting motor will not drag the engine to rotate, thereby avoiding the phenomenon of the starter in the first power system hitting the teeth when starting after the engine rotates. When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in working condition, a start command is sent to the second power device, and the second power device can be started with load according to the power-assisting torque provided by the first power device.

[0072] Through the above technical solution, when the control device receives the load start instruction, it sends a work instruction to the DCDC module, and determines whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load, so that remote load start can be achieved. And the discharge current is provided by the DCDC module, which can improve the battery life.

[0073] In the embodiment of the present application, the first power device further includes a motor controller and a booster motor, and the motor controller communicates with the booster motor. The method may further include:

[0074] The torque mode command is sent to the motor controller to control the output torque of the power assist motor through the motor controller.

[0075] Specifically, the first power device may further include a motor controller and a booster motor, and the motor controller communicates with the booster motor. When receiving the load start command, the control device may also send a torque mode command to the motor controller in the first power device, and after the booster motor feedback state is the torque mode, the motor controller may control the booster motor to output torque.

[0076] In the embodiment of the present application, the first power device may further include a power battery, which is respectively connected to the DCDC module and the motor controller, and can provide power for the motor controller, and provide electrical energy together with the DCDC module. By increasing the voltage value, the operating current of the starter and the output current of the low-voltage battery can be reduced, so as to achieve the purpose of increasing the life of the starter and the low-voltage battery.

[0077] In the embodiment of the present application, the second power device includes an engine controller, an engine, a starter and a low-voltage battery, the engine communicates with the engine controller and the starter respectively, the low-voltage battery is connected to the engine controller, the engine and the starter respectively, and sending a start command to the second power device to control the second power device to start with load may include:

[0078] Sending a start command to the engine controller to control the starter to connect to the engine through the engine controller;

[0079] The starter is driven by a low-voltage battery to rotate, thereby driving the engine to rotate;

[0080] Determine whether the engine speed is greater than the starting speed;

[0081] When the engine speed is greater than the starting speed, it is determined that the engine load start is successful.

[0082] Specifically, the second power device may include an engine controller, an engine, a starter and a low-voltage battery. The engine may be connected to the engine controller and the starter, respectively, and the low-voltage battery may be connected to the engine controller, the engine and the starter, respectively. When the control device determines that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, the control device sends a start command to the engine controller in the second power device. After receiving the start command, the engine controller may control the starter to connect to the engine, and drive the starter to rotate through the low-voltage battery function to drag the engine to rotate until the engine speed is greater than the starting speed. When the engine speed is greater than the starting speed, it can be determined that the engine load start is successful.

[0083] In an embodiment of the present application, the method may further include:

[0084] Determine whether the time for the starter to drive the engine to rotate exceeds a preset time;

[0085] When the dragging time exceeds the preset time, the starter is controlled to disengage from the engine.

[0086] Specifically, in the process of the starter rotating to drive the engine to rotate, the dragging time of the starter dragging the engine to rotate can be obtained, and it can be determined whether the dragging time exceeds a preset time. The preset time refers to a preset maximum dragging time. In the case where the dragging time exceeds the preset time, the starter is controlled to be separated from the engine, which can prevent the starter and the low-voltage battery from being damaged by long-term starting.

[0087] In an embodiment of the present application, the method may further include:

[0088] When the engine is started successfully, the torque of the first power device is controlled to be reduced to a second target torque, wherein the second target torque is less than the first target torque;

[0089] Send a shutdown command to the DCDC module.

[0090] Specifically, when the engine is started successfully, the control device controls the torque of the first power device to be reduced to the second target torque. For example, the second target torque can be 0. At the same time, the working mode of the first power device is controlled to be the speed mode. At the same time, the control device sends a shutdown command to the DCDC module to control the DCDC module to stop working. After the torque of the first power device is reduced to the second target torque and the DCDC module stops working, the remote engine start is completed.

[0091] Figure 2 The flowchart of a method for remote engine load starting according to a specific embodiment of the present application is schematically shown. Figure 2As shown, an embodiment of the present application provides a method for remote engine start-up, which may include the following steps:

[0092] S201, start;

[0093] S202, the engineering vehicle is powered on but not started, and the working state information of the first power system and the second power system of the engine is obtained;

[0094] S203, the engineering vehicle receives a start signal, the first power system provides an assist torque T_d, the DCDC function is turned on, and when T_d reaches T_dmax, the second power system starts the engine;

[0095] S204, when it is detected that the engine speed is ≥N_e+200, the first power system controls T_d=0, the DCDC function is turned off, and the engine is started successfully with load;

[0096] S205, end.

[0097] In the embodiment of the present application, the working state information of the first power system (i.e., the first power device in the present application) and the second power system (i.e., the second power device in the present application) includes but is not limited to the following: engine speed, engine ECU self-test state, low-voltage battery voltage, starter speed, power motor speed, power motor torque and power motor self-test state, etc. Whether the engine is started normally or loaded can be distinguished by whether the gearbox gear is in neutral. When the engineering vehicle is powered on and not started, the working state information of the first power system and the second power system of the engine is obtained. When the engineering vehicle receives the start signal, the first power system provides the power torque T_d, the DCDC function is turned on, and when T_d reaches T_dmax (i.e., the first target torque in the present application), the second power system performs the engine start. When the engine speed is detected to be greater than or equal to N_e+200 (i.e., the starting speed in the present application), the first power system controls T_d=0 (i.e., the second target torque in the present application), the DCDC function is turned off, and the engine remote load start is successful.

[0098] Through the above technical solution, when the control device receives the load start instruction, it sends a work instruction to the DCDC module, and determines whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load, so that remote load start can be achieved. And the discharge current is provided by the DCDC module, which can improve the battery life.

[0099] Figure 3The structure block diagram of a control device according to an embodiment of the present application is schematically shown. Figure 3 As shown, an embodiment of the present application provides a control device, which may include:

[0100] Memory 310, configured to store instructions; and

[0101] The processor 320 is configured to call instructions from the memory 310 and implement the above-mentioned method for remote engine start when executing the instructions.

[0102] Specifically, in the embodiment of the present application, the processor 320 may be configured to:

[0103] When receiving the load start command, send the working command to the DCDC module;

[0104] Determining whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state;

[0105] When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load.

[0106] Furthermore, the processor 320 may be configured to:

[0107] The torque mode command is sent to the motor controller to control the output torque of the power assist motor through the motor controller.

[0108] Furthermore, the processor 320 may be configured to:

[0109] Sending a start command to the engine controller to control the starter to connect to the engine through the engine controller;

[0110] The starter is driven by a low-voltage battery to rotate, thereby driving the engine to rotate;

[0111] Determine whether the engine speed is greater than the starting speed;

[0112] When the engine speed is greater than the starting speed, it is determined that the engine load start is successful.

[0113] Furthermore, the processor 320 may be configured to:

[0114] Determine whether the time for the starter to drive the engine to rotate exceeds a preset time;

[0115] When the dragging time exceeds the preset time, the starter is controlled to disengage from the engine.

[0116] Furthermore, the processor 320 may be configured to:

[0117] When the engine is successfully started with load, the torque of the first power device is controlled to be reduced to a second target torque, wherein the second target torque is less than the first target torque;

[0118] Send a shutdown command to the DCDC module.

[0119] Through the above technical solution, when the control device receives the load start instruction, it sends a work instruction to the DCDC module, and determines whether the torque output by the first power device meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power device meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device to control the second power device to start with load, so that remote load start can be achieved. And the discharge current is provided by the DCDC module, which can improve the battery life.

[0120] Figure 4 The structure diagram of a system for remote engine start-up according to an embodiment of the present application is schematically shown. Figure 4 As shown, an embodiment of the present application provides a system for remote engine start-up, which may include:

[0121] According to the control device 410 described above;

[0122] A first power device 420 , in communication with the control device 410 , configured to output torque according to a torque mode command sent by the control device 410 ;

[0123] The second power device 430 communicates with the control device 410 , and is configured to start the device under load according to the start instruction sent by the control device 410 and the torque provided by the first power device 420 .

[0124] In the embodiment of the present application, the system for remote engine load start may include a control device 410, a first power device 420, and a second power device 430. The control device 410 communicates with the first power device 420 and the second power device 430 respectively. The first power device 420 may be configured to output torque according to the torque mode command sent by the control device 410. The second power device 430 may be configured to perform load start according to the start command sent by the control device 410 and the torque provided by the first power device 420.

[0125] In the embodiment of the present application, the control device 410 sends a working instruction to the first power device 420 when receiving the on-load start instruction. The control device 410 determines whether the torque output by the first power device 420 meets the first target torque and whether the DCDC module is in a working state. When it is determined that the torque output by the first power device 420 meets the first target torque and the DCDC module is in a working state, a start instruction is sent to the second power device 430 to control the second power device 430 to start with load.

[0126] Figure 5 The structure diagram of a first power device according to an embodiment of the present application is schematically shown. Figure 5 As shown, in the embodiment of the present application, the first power device 420 may include:

[0127] The DCDC module 421 is configured to output current;

[0128] The motor controller 422 is configured to control the power assist motor 423 to output torque according to the instruction of the control device 410;

[0129] The power assist motor 423 communicates with the motor controller 422 and is configured to output torque according to a control instruction of the motor controller 422;

[0130] The power battery 424 is connected to the DCDC module 421 and the motor controller 422 , respectively, and is configured to provide current to the DCDC module 421 and the motor controller 422 .

[0131] Specifically, the first power device 420 may include a DCDC module 421, a motor controller 422, a boost motor 423 and a power battery 424. The power battery 424 may be connected to the DCDC module 421 and the motor controller 422 respectively and configured to provide current to the DCDC module 421 and the motor controller 422. The motor controller 422 may communicate with the boost motor 423. The motor controller 422 is configured to control the boost motor 423 to output torque according to the instruction of the control device 410. The boost motor 423 is configured to output torque according to the control instruction of the motor controller 422. The first power device 420 may provide boost torque for the engine of the second power device 430, reduce the starter load, and cooperate with the low-voltage battery to provide electrical energy. By increasing the voltage value, the operating current of the starter and the output current of the low-voltage battery may be reduced to achieve the purpose of increasing the life of the starter and the low-voltage battery.

[0132] Figure 6 The structure diagram of a second power device according to an embodiment of the present application is schematically shown. Figure 6 As shown, in the embodiment of the present application, the second power device 430 may include:

[0133] An engine controller 431 configured to send control instructions to an engine 434 and a starter 433;

[0134] a low voltage battery 432 configured to provide power;

[0135] The starter 433 is connected to the engine controller 431 and the low-voltage battery 432 respectively, and is configured to rotate according to the control signal and drive the engine 434 to rotate;

[0136] The engine 434 , which is in communication with the engine controller 431 and connected to the starter 433 , is configured to rotate in accordance with the rotation of the starter 433 .

[0137] Specifically, the second power device 430 may include an engine controller 431, a low-voltage battery 432, a starter 433, and an engine 434. The low-voltage battery 432 is connected to the starter 433. The engine 434 communicates with the engine controller 431 and is connected to the starter 433. The engine controller 431 is configured to send a control instruction to the engine 433. The low-voltage battery 432 is configured to provide power. The starter 433 is configured to rotate according to the power supply and drag the engine 434 to rotate. The engine 434 is configured to rotate following the rotation of the starter 433. When it is determined that the torque output by the first power device 420 meets the first target torque and the DCDC module 421 is in a working state, the control device 430 sends a start instruction to the engine controller 431 in the second power device 423 to control the starter 433 to connect to the engine 434 through the engine controller 431. And the starter 433 is driven to rotate by the low-voltage battery 432 to drag the engine 434 to rotate. Then determine whether the rotation speed of the engine 434 is greater than the starting rotation speed. If the rotation speed of the engine 434 is greater than the starting rotation speed, it is determined that the engine load start is successful.

[0138] Figure 7 The structure diagram of a system for remote engine start-up according to a specific embodiment of the present application is schematically shown. Figure 7 As shown, an embodiment of the present application provides a system for remote on-load starting of an engine, which includes a control system 710 (i.e., the control device in the present application), a first power system 720 (i.e., the first power device in the present application), a second power system 730 (i.e., the second power device in the present application), a gearbox 740 and a power coupling device 750.

[0139] The first power system 720 includes a DCDC 721, a power battery 722, a motor controller 723 and a power motor 724. The second power system 730 includes a low-voltage battery 731, an ECU 732 (i.e., an engine controller in this application), a generator 733, a starter 734, and an engine 735. When the control system 710 receives a remote load start request from the remote controller, it sends a torque mode instruction to the motor controller 723 and an enable request to the DCDC 721. After the feedback state of the power motor 724 is the torque mode, the power target torque T_dmax is started. When the actual torque feedback of the power motor is T_dmax and the feedback state of the DCDC 721 is in the working state, the control system 710 sends a start instruction to the engine ECU 732. When the engine speed is greater than the starting speed N_e+200rpm, the control system 710 sends a main target torque of 0 to the motor controller 723, sends the working mode to the speed mode, and the control system 710 sends a DCDC shutdown instruction to the first power system 720. The engine can be remotely started with load through motor assistance, and DCDC is added to the system architecture to provide discharge current together with the low-voltage battery during remote load starting, which can reduce the output current of the low-voltage battery, reduce the discharge current of the low-voltage battery, and shorten the duration of low-voltage battery discharge, thereby greatly improving the service life of the low-voltage battery.

[0140] In an embodiment of the present application, a machine-readable storage medium is provided, on which instructions are stored, and the instructions are used to enable a machine to execute the above-mentioned method for remote engine load starting.

[0141] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0142] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0143] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0144] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0145] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0146] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0147] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0148] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0149] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A method for remote engine start-up, characterized in that: Applied to a control device, the control device communicates with a first power device and a second power device respectively, the first power device includes a DCDC module, the method includes: When receiving a load start instruction, sending a work instruction to the DCDC module; determining whether the torque output by the first power device meets a first target torque and whether the DCDC module is in a working state; When it is determined that the torque output by the first power device satisfies the first target torque and the DCDC module is in a working state, sending a start instruction to the second power device to control the second power device to start with load; The first power device further includes a motor controller and a booster motor, the motor controller communicates with the booster motor, and the method further includes: Sending a torque mode instruction to the motor controller to control the output torque of the power assist motor through the motor controller; The second power device includes an engine controller, an engine, a starter and a low-voltage battery, the engine communicates with the engine controller and the starter respectively, the low-voltage battery is connected to the engine controller, the engine and the starter respectively, and the sending of a start command to the second power device to control the second power device to start with load includes: Sending a start command to the engine controller to control the starter to connect to the engine through the engine controller; The starter is driven to rotate by the low-voltage battery to drive the engine to rotate; Determining whether the speed of the engine is greater than the starting speed; When the rotation speed of the engine is greater than the starting rotation speed, it is determined that the engine load starting is successful.

2. The method according to claim 1, characterized in that The method further comprises: Determining whether the dragging time of the starter to drag the engine to rotate exceeds a preset time; When the dragging time exceeds the preset time, the starter is controlled to be disconnected from the engine.

3. The method according to claim 1, characterized in that The method further comprises: When the engine is successfully started with load, controlling the torque of the first power device to decrease to a second target torque, wherein the second target torque is less than the first target torque; Send a shutdown command to the DCDC module.

4. A control device, characterized in that: include: a memory configured to store instructions; as well as A processor is configured to call the instructions from the memory and implement the method for remote engine starting according to any one of claims 1 to 3 when executing the instructions.

5. A system for remote engine start-up, characterized in that: include: A control device according to claim 4; a first power device in communication with the control device and configured to output torque according to a torque mode command sent by the control device; The second power device communicates with the control device and the first power device respectively, and is configured to perform load starting according to the starting instruction sent by the control device and the torque provided by the first power device.

6. The system according to claim 5, characterized in that The first power device comprises: The DCDC module is configured to output current; A motor controller configured to control the output torque of the power assist motor according to the command of the control device; The power assist motor is in communication with the motor controller and is configured to output torque according to a control instruction of the motor controller; The power battery is connected to the DCDC module and the motor controller respectively, and is configured to provide current to the DCDC module and the motor controller.

7. The system according to claim 5, characterized in that The second power device comprises: an engine controller configured to send control commands to the engine and the starter; a low voltage battery configured to provide a power source; The starter is connected to the engine controller and the low-voltage battery respectively, and is configured to rotate according to a control signal and drive the engine to rotate; The engine, in communication with the engine controller and connected to the starter, is configured to rotate following the rotation of the starter.

8. A machine-readable storage medium, characterized in that: The machine-readable storage medium stores instructions for causing a machine to execute the method for remote engine starting according to any one of claims 1 to 3.

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