CN103670846A - Engineering vehicle oil pumping control method, device and system - Google Patents

Abstract

The invention discloses an engineering vehicle oil pumping control method, device and system, which are used for controlling the action of an electric pump connected with a front oil tank and a rear oil tank through an oil conveying pipe; the system comprises: the detection device is used for detecting the current state information of the oil pumping system in the engineering vehicle; and the oil pumping controller is respectively in signal connection with the detection device and the electric pump, and is used for determining the current action information of the electric pump according to the magnitude relation between the current state information of the oil pumping system detected by the detection device and a set value, and controlling the action of the electric pump according to the current action information of the electric pump. In the control system provided by the embodiment of the invention, the oil pumping controller can adjust the action of the electric pump according to the magnitude relation between the current state information of the oil pumping system and the set value detected by the detection device, so that the oil pumping controller can control the electric pump to be closed in time when the oil quantity in the front oil tank is about to be full, so as to avoid overflow caused by over-full oil quantity in the front oil tank, and further ensure the safety when the oil is pumped from the rear oil tank to the front oil tank.

Description

Oil pump control method, device and system for engineering vehicles

technical field

The invention relates to the technical field of engineering vehicle control, in particular to an engineering vehicle oil pump control method, device and system.

Background technique

With the development of the economy, the requirements for engineering vehicles are getting higher and higher, not only requiring engineering vehicles to have good driving performance, but also requiring engineering vehicles to achieve a longer cruising range. However, in order to meet the performance requirements of the engineering vehicle chassis, the space occupied by the fuel tank on the chassis is generally small, resulting in a decrease in the fuel reserve in the fuel tank, so that the fuel reserve in the fuel tank of the engineering vehicle cannot meet the mileage requirements.

In order to make engineering vehicles achieve a longer cruising range while meeting the performance requirements of their chassis, in existing engineering vehicles, two fuel tanks, front and rear, are generally arranged on the chassis to supply oil to the engineering vehicles.

However, in the process of pumping oil from the rear fuel tank to the forward fuel tank through the electric pump, if the control is improper, accidents such as oil spills or even fires may easily occur; The oil pumping system of the oil tank is controlled safely, so there is a safety hazard in the process of pumping oil from the rear oil tank to the front oil tank.

Contents of the invention

The invention provides an oil pumping control method, device and system of an engineering vehicle to ensure the safety when oil is pumped from the rear fuel tank to the front fuel tank, thereby improving the safety and reliability of the whole vehicle.

To achieve the above object, the present invention provides the following technical solutions:

The engineering vehicle oil pump control method provided by the present invention includes:

Obtain the current status information of the oil pump system in the construction vehicle;

According to the magnitude relationship between the acquired current state information of the oil pumping system and the set value, the current action information of the electric pump is determined, and the action of the electric pump is controlled according to the current action information of the electric pump.

In the engineering vehicle oil pumping control method provided by the present invention, the current action information of the electric pump is determined according to the magnitude relationship between the current state information of the oil pumping system and the set value, so it can ensure that the rear oil tank pumps oil to the front oil tank. Safety, thereby improving the safety of the vehicle.

Preferably, the current status information of the oil pumping system includes the current oil quantity information of the front fuel tank and the current fuel quantity information of the rear fuel tank;

According to the size relationship between the acquired current state information of the oil pumping system and the set value, determine the current action information of the electric pump, and control the action of the electric pump according to the current action information of the electric pump, specifically including:

When the current fuel quantity information of the current fuel tank is less than the first fuel quantity setting value of the front fuel tank, and the current fuel quantity information of the rear fuel tank is greater than the low fuel quantity setting value of the rear fuel tank, the electric pump start information is generated, and the electric pump is turned on according to the The information controls the electric pump to start to pump oil; the current fuel quantity information of the current fuel tank is greater than or equal to the first fuel quantity setting value of the front fuel tank, and/or the current fuel quantity information of the rear fuel tank is less than or equal to the low fuel quantity setting of the rear fuel tank When the value is set, the electric pump closing information is generated, and the electric pump is controlled to close according to the electric pump closing information.

Preferably, when the fuel quantity information of the current fuel tank is greater than or equal to the first fuel quantity setting value of the front fuel tank, and/or the current fuel quantity information of the rear fuel tank is less than or equal to the low fuel quantity setting value of the rear fuel tank, an alarm is also generated signal, and control the alarm device to give corresponding alarm prompts according to the alarm signal.

Preferably, the step of determining the current action information of the electric pump according to the obtained relationship between the current state information of the oil pump system and the set value, and controlling the action of the electric pump according to the current action information of the electric pump also includes: the current state of the current oil tank When the fuel quantity information is less than the second fuel quantity setting value of the front fuel tank, the electric pump fast pump oil signal is generated, and the electric pump is controlled to pump oil according to the electric pump fast pump oil signal; the current fuel quantity information of the current fuel tank is greater than or equal to that of the front fuel tank When the second oil volume setting value is reached, the electric pump slow pump oil signal is generated, and the electric pump pump oil is controlled according to the electric pump slow speed pump oil signal; wherein, the electric pump pump oil is controlled according to the electric pump fast pump oil signal. The pumped oil volume per unit time is greater than the pumped oil volume per unit time of the electric pump when the electric pump is controlled to pump oil according to the slow speed pump oil signal of the electric pump.

Preferably, the acquisition of the current state information of the oil pumping system also includes obtaining the vehicle speed information, tire pressure information and inclination information of the engineering vehicle; determining whether the vehicle is in a stationary state according to the vehicle speed information, if the vehicle speed information of the engineering vehicle is zero, Then determine that the engineering vehicle is in a static state; judge whether the vehicle is in a horizontal state according to the tire pressure information and inclination information, if the tire pressure information of each tire is equal and the inclination information of the engineering vehicle is zero, determine that the engineering vehicle is in a horizontal state; determine the When the engineering vehicle mentioned above is in a horizontal state and is in a stationary state, the electric pump is controlled to perform follow-up actions.

Preferably, the current status information of the oil pumping system also includes working time information of the electric pump;

The method of determining the current action information of the electric pump according to the obtained relationship between the current state information of the oil pump system and the set value, and controlling the action of the electric pump according to the current action information of the electric pump also includes: when the electric pump is working. When the working time is less than the set working time, generate the electric pump opening information, and control the electric pump to continue to open according to the electric pump opening information for oil pumping operation; when the electric pump working time is greater than or equal to the set working time, generate the electric pump closing information, according to The electric pump off message controls the electric pump to turn off.

The present invention also provides an engineering vehicle oil pump control device, comprising:

The receiving device is used to receive the acquired current status information of the oil pumping system in the engineering vehicle;

Determining equipment, used to determine the current action information of the electric pump according to the obtained relationship between the current state information of the pumping system and the set value;

The output device is used to send the determined current action information of the electric pump to the electric pump, so that the electric pump acts according to the current action information of the electric pump.

Preferably, the current status information of the oil pumping system includes the current oil quantity information of the front fuel tank and the current fuel quantity information of the rear fuel tank;

The determining device is specifically used to generate an electric pump when the current fuel volume information of the current fuel tank is less than the first fuel volume set value of the front fuel tank, and the current fuel volume information of the rear fuel tank is greater than the low oil volume set value of the rear fuel tank. Open information; when the current fuel volume information of the current fuel tank is greater than or equal to the first fuel volume setting value of the front fuel tank, and/or the current fuel volume information of the rear fuel tank is less than or equal to the low oil volume setting value of the rear fuel tank, the electric pump is turned off information.

Preferably, the determining device is also used for the current fuel quantity information of the current fuel tank to be greater than or equal to the first fuel quantity setting value of the front fuel tank, and/or the current fuel quantity information of the rear fuel tank to be less than or equal to the low level fuel quantity setting of the rear fuel tank Generate an alarm signal when the value is set;

The output device is further configured to send the alarm signal determined by the determination device to the alarm device, so that the alarm device can give a corresponding alarm prompt according to the alarm signal.

Preferably, when the current oil quantity information of the front fuel tank is less than the second fuel quantity set value of the front fuel tank, the determining device generates a fast oil pumping signal of the electric pump, and the output device turns off the fast oil pumping signal of the electric pump Send to the electric pump, so that the electric pump pumps oil according to the fast oil pumping signal of the electric pump; when the current oil quantity information of the current fuel tank is greater than or equal to the second oil quantity setting value of the front fuel tank, the determination device generates the slow speed of the electric pump A fast pump oil signal, and the output device sends the electric pump slow pump oil signal to the electric pump, so that the electric pump pumps oil according to the electric pump slow pump oil signal;

Wherein, when the electric pump pumps oil according to the fast pump oil signal, the pump oil volume per unit time of the electric pump is greater than when the electric pump pumps oil according to the slow pump oil signal.

Preferably, the receiving device is also used to receive the acquired vehicle speed information, tire pressure information and inclination information of the engineering vehicle; the determining device is also used to determine whether the vehicle is in a stationary state according to the vehicle speed information, if the vehicle speed of the engineering vehicle When the information is zero, it is determined that the engineering vehicle is in a static state; according to the tire pressure information and inclination information, it is judged whether the vehicle is in a horizontal state. If the tire pressure information of each tire is equal and the inclination information of the engineering vehicle is zero, it is determined that the engineering vehicle is in a level state.

Preferably, the current status information of the oil pumping system also includes working time information of the electric pump;

When the working time information of the electric pump is less than the set working time, the determining device is further configured to generate electric pump start information, and the output device sends the electric pump start information generated by the determining device to the electric pump, so as to Make the electric pump continue to be turned on for oil pumping operation; when the working time of the electric pump is greater than or equal to the set working time, the determination device is also used to generate electric pump shutdown information, and the output device converts the electric pump generated by the determination device A pump off message is sent to the electric pump to shut down the electric pump.

The present invention also provides an engineering vehicle oil pump control system, which is used to control the action of the electric pump connected to the front fuel tank and the rear fuel tank through the oil delivery pipe; it includes:

A detection device for detecting current status information of the oil pumping system in the construction vehicle; and

The oil pump controller is respectively connected to the detection device and the electric pump signal, and is used to determine the current action information of the electric pump according to the magnitude relationship between the current state information of the oil pump system detected by the detection device and the set value, and to determine the current action information of the electric pump according to the The current action information of the electric pump controls the action of the electric pump.

In the control system provided by the present invention, the oil pump controller can adjust the action of the electric pump according to the magnitude relationship between the current state information of the oil pump system detected by the detection device and the set value, so the oil volume in the front oil tank is almost When it is full, the oil pump controller can control the electric pump to shut down in time, so as to avoid the oil in the front oil tank from overflowing due to overfilling, thus ensuring the safety when pumping oil from the rear oil tank to the front oil tank.

Preferably, the detection device includes: a front fuel tank fuel quantity detection device installed in the front fuel tank to detect the current fuel quantity information of the front fuel tank; a rear fuel tank fuel quantity detection device installed in the rear fuel tank to detect the current fuel quantity information of the rear fuel tank ;

The oil pump controller is connected to the front fuel tank oil volume detection device and the rear fuel tank oil volume detection device respectively, specifically for the current fuel volume information of the current fuel tank is less than the first fuel volume set value of the front fuel tank, and When the current fuel volume information of the rear fuel tank is greater than the set value of the low oil volume of the rear fuel tank, the electric pump start information is generated, and the electric pump is controlled to start the electric pump according to the electric pump open information to perform oil pumping operation; the current fuel volume information of the current fuel tank is greater than or equal to When the first fuel quantity setting value of the front fuel tank and/or the current fuel quantity information of the rear fuel tank is less than or equal to the low oil quantity setting value of the rear fuel tank, the electric pump closing information is generated, and the electric pump is controlled to close according to the electric pump closing information.

Preferably, the oil quantity detection device of the front fuel tank is an oil quantity sensor, a liquid level switch or a liquid level gauge;

The oil quantity detecting device of the rear fuel tank is an oil quantity sensor, a liquid level switch or a liquid level gauge.

Preferably, the control system also includes an alarm device connected with the signal of the oil pump controller; the oil pump controller is also used for the current oil quantity information of the current oil tank to be greater than or equal to the first oil quantity set value of the front oil tank , and/or when the current oil volume information of the rear fuel tank is less than or equal to the low oil volume set value of the rear fuel tank, an alarm signal is generated and sent to the alarm device, so that the alarm device performs a corresponding alarm prompt according to the alarm signal .

Preferably, the detection device further includes: an inclination sensor installed on the chassis of the engineering vehicle to detect the inclination information of the vehicle, and a tire pressure sensor installed on the tire of the engineering vehicle to detect the tire pressure information of the tire; The oil pump controller is respectively connected with the inclination sensor, the tire pressure sensor, and the control bus of the engineering vehicle, and is used to receive the vehicle speed information through the control bus. If the vehicle speed information of the engineering vehicle is zero, then determine the engineering vehicle It is in a static state; if the tire pressure information of each tire is equal and the inclination information of the engineering vehicle is zero, it is determined that the engineering vehicle is in a horizontal state.

Preferably, the oil pump controller is also provided with a clock circuit for recording the working time of the electric pump; the oil pump controller is also used to generate an electric Pump opening information, and control the electric pump to continue to open according to the electric pump opening information for oil pumping operation; when the working time of the electric pump is greater than or equal to the set working time, generate electric pump closing information, and control the electric pump to close according to the electric pump closing information.

The present invention also provides an engineering vehicle, which includes the engineering vehicle oil pump control system provided by any one of the above technical solutions.

Since the oil pumping control system of the engineering vehicle can ensure the safety when oil is pumped from the rear fuel tank to the front fuel tank, the engineering vehicle provided by the present invention with any one of the above control systems has high safety and reliability.

Description of drawings

Fig. 1 is a flow chart of an engineering vehicle oil pump control method provided by an embodiment of the present invention;

Fig. 2 is a flow chart of a specific control method of an engineering vehicle oil pump system provided by an embodiment of the present invention;

3 is a schematic structural view of an engineering vehicle oil pump control device provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an engineering vehicle oil pump control system provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the embodiment of the present invention, two fuel tanks are arranged on the chassis of the engineering vehicle, wherein the front fuel tank refers to a fuel tank connected with the engine to provide fuel to the engine; the rear fuel tank is a storage fuel tank, and communicates with the front fuel tank through a fuel delivery pipe. When it is necessary to refuel in the forward fuel tank, the operator can turn on the oil pump switch in the cab when the vehicle is powered on, so that the control device controls the action of the electric pump to pump oil from the rear fuel tank to the forward fuel tank.

Please refer to Fig. 1, in the engineering vehicle oil pumping control method provided by the embodiment of the present invention, the process of the control device controlling the action of the electric pump to perform the oil pumping operation is an automatic process, which includes:

Step S101: the control device obtains the current state information of the oil pumping system in the engineering vehicle.

Step S102: The control device determines the current action information of the electric pump according to the obtained magnitude relationship between the current state information of the oil pump system and the set value, and controls the action of the electric pump according to the current action information of the electric pump.

Wherein, the current state information of the oil pumping system in step S101 includes the current oil quantity information of the front oil tank and the current oil quantity information of the rear oil tank; Size relationship, determine the current action information of the electric pump, and control the action of the electric pump according to the current action information of the electric pump, including:

When the current fuel quantity information of the current fuel tank is less than the first fuel quantity setting value of the front fuel tank, and the current fuel quantity information of the rear fuel tank is greater than the low fuel quantity setting value of the rear fuel tank, the electric pump start information is generated, and the electric pump is turned on according to the The information controls the electric pump to turn on for oil pumping operation;

When the current fuel quantity information of the current fuel tank is greater than or equal to the first fuel quantity setting value of the front fuel tank, and/or the current fuel quantity information of the rear fuel tank is less than or equal to the low level fuel quantity setting value of the rear fuel tank, generate electric pump shutdown information, according to The electric pump closing information controls the closing of the electric pump to prevent oil spill accidents caused by excessive oil pumped into the forward fuel tank; at the same time, the control device also generates an alarm signal, and controls the alarm device to give corresponding alarm prompts according to the alarm signal, so as to remind the operator in time Turn off the oil pump switch in the cab.

In addition, when the current fuel quantity information of the current fuel tank is less than the second fuel quantity setting value of the front fuel tank, an electric pump fast pump oil signal is generated, and the electric pump is controlled to pump oil according to the electric pump fast pump oil signal;

When the current fuel quantity information of the front fuel tank is greater than or equal to the second fuel quantity set value of the front fuel tank, a slow pump oil signal of the electric pump is generated, and the electric pump is controlled to pump oil according to the slow speed pump oil signal of the electric pump.

Wherein, when the electric pump is controlled to pump oil according to the fast pump oil signal of the electric pump, the pump oil volume per unit time of the electric pump is greater than that when the electric pump pump oil is controlled according to the slow speed pump oil signal of the electric pump.

In this way, the control device can automatically reduce the oil pumping speed when the current oil quantity information in the front fuel tank is greater than the second oil quantity setting value, so that the oil level in the front fuel tank rises slowly, so that the oil quantity in the front fuel tank is greater than or equal to the second oil quantity. The electric pump can be turned off in time when the oil volume is set to avoid oil spill accidents.

In the above embodiment, in order to obtain the current state information of the oil pumping system accurately, preferably, the control device may also determine in advance that the engineering vehicle is in a stationary state and a horizontal state before obtaining the current state information of the oil pumping system.

Specifically, the control device determines whether the vehicle is in a stationary state according to the vehicle speed information. If the vehicle speed information of the engineering vehicle is zero, it determines that the engineering vehicle is in a stationary state; and judges whether the vehicle is in a horizontal state according to the tire pressure information and inclination information. If each tire The tire pressure information of the engineering vehicle is equal and the inclination information of the engineering vehicle is zero, so it is determined that the engineering vehicle is in a horizontal state. After determining that the engineering vehicle is in a horizontal state and in a static state, the control device controls the electric pump to perform subsequent actions.

When the construction vehicle is in a non-stationary state and/or the construction vehicle is in a non-horizontal state, the control device generates an alarm signal and controls the alarm device to give a corresponding alarm prompt to remind the operator to adjust the horizontal position of the construction vehicle and stop.

When the construction vehicle is stationary and level, the control device obtains the current state information of the oil pumping system, and then controls the electric pump to perform subsequent actions to ensure the accuracy of the current state information of the oil pumping system.

In addition, since the internal coil of the electric pump is easily overheated and damaged when the electric pump works for a long time, in order to prevent the electric pump from being damaged, in the above-mentioned embodiments, the control device can also record the working time of the electric pump, and The performance of the pump is input into a set working time in the control device. When the working time information of the electric pump is less than the set working time, the control device generates the electric pump start information, and continues to control the electric pump to start according to the electric pump start information for pumping. Oil operation; when the working time of the electric pump is greater than or equal to the set working time, the electric pump closing information is generated, and the electric pump is controlled to close according to the electric pump closing information. Then, the current status information of the oil pumping system at this time should also include the working time information of the electric pump.

Of course, when the working time of the electric pump is greater than or equal to the set working time, the control device can also generate an alarm signal, and control the alarm device to give a corresponding alarm prompt according to the alarm signal, reminding the operator to turn off the oil pump switch to stop the oil pump operation.

As shown in Figure 2, it is a specific control method of an engineering vehicle oil pump system in an embodiment of the present invention, including:

Step S201: the control device acquires the vehicle speed signal of the engineering vehicle;

Step S202: The control device judges whether the construction vehicle is in a stationary state according to the vehicle speed signal, and if so, executes Step S204, otherwise executes Step S203;

Step S203: the control device generates an alarm signal, and controls the alarm device to give a corresponding alarm prompt according to the alarm signal;

Step S204: the control device acquires tire pressure information and inclination information of the engineering vehicle;

Step S205: The control device judges whether the construction vehicle is in a horizontal state according to the acquired tire pressure information and inclination information, if so, execute step S207, otherwise execute step S206;

Step S206: the control device generates an alarm signal, and controls the alarm device to give a corresponding alarm prompt according to the alarm signal;

Step S207: the control device obtains the current fuel quantity information of the front fuel tank;

Step S208: the control device judges whether the current fuel quantity information of the front fuel tank is less than the first fuel quantity setting value, if so, execute step 210, otherwise execute step 209;

Step S209: the control device generates electric pump shutdown information and an alarm signal, and controls the electric pump to shut down according to the electric pump shutdown information, and controls the alarm device to give corresponding alarm prompts according to the alarm signal;

Step S210: the control device obtains the current fuel quantity information of the rear fuel tank;

Step S211: the control device judges whether the current oil quantity information of the rear fuel tank is less than the set value of the low oil quantity of the rear fuel tank, and if so, executes step 213; otherwise, executes step 212;

Step S212: the control device generates electric pump shutdown information and an alarm signal, and controls the electric pump to shut down according to the electric pump shutdown information, and controls the alarm device to give corresponding alarm prompts according to the alarm signal;

Step S213: the control device generates electric pump start information, and controls the electric pump to start according to the electric pump start information for oil pumping operation;

Step S214: the control device judges whether the current fuel quantity information of the front fuel tank is less than the second fuel quantity setting value of the front fuel tank, if so, execute step 215, otherwise execute step 216;

Step S215: the control device generates a fast oil pumping signal of the electric pump, and controls the electric pump to pump oil according to the fast oil pumping signal of the electric pump;

Step S216: The control device generates a slow-speed oil pumping signal of the electric pump, and controls the electric pump to pump oil according to the slow-speed oil pumping signal of the electric pump;

Step S217: the control device obtains the working time information of the electric pump;

Step S218: The control device judges whether the working time information of the electric pump is less than the set working time, if so, execute step 219, otherwise execute step 220;

Step S219: the control device generates electric pump start information, and continues to control the electric pump to start according to the electric pump start information for oil pumping operation;

Step S220: the control device generates electric pump shutdown information and an alarm signal, controls the electric pump to shut down according to the electric pump shutdown information, and controls the alarm device to give a corresponding alarm prompt according to the alarm signal.

In summary, the oil pumping control method for engineering vehicles provided by the embodiments of the present invention can ensure the safety of the rear fuel tank pumping oil to the front fuel tank, thereby improving the safety of the entire vehicle.

Based on the same idea, the embodiment of the present invention also provides an engineering vehicle oil pump control device. The principle of the control device is the same as that of the engineering vehicle oil pump control method provided in the above embodiment, and the specific implementation can participate in the implementation of the above control method method, the repetition will not be repeated.

As shown in Figure 3, the engineering vehicle oil pump control device provided by the embodiment of the present invention includes:

The receiving device 301 is configured to receive the acquired current status information of the oil pumping system in the engineering vehicle;

The determining device 302 is configured to determine the current action information of the electric pump according to the acquired current status information of the oil pump system and the set value;

The output device 303 is configured to send the determined current action information of the electric pump to the electric pump, so that the electric pump operates according to the current action information of the electric pump.

Wherein, the current state information of the above-mentioned oil pumping system includes the current oil quantity information of the front fuel tank and the current fuel quantity information of the rear fuel tank; at this time, the current fuel quantity information of the current fuel tank is less than the first fuel quantity setting value of the front fuel tank, and When the current fuel volume information of the rear fuel tank is greater than the set value of the low oil volume of the rear fuel tank, the determination device 302 is used to generate the electric pump start information, and the output device 303 sends the electric pump start information generated by the determination device 302 to the electric pump , so that the electric pump acts according to the electric pump start information;

When the current fuel quantity information of the current fuel tank is greater than or equal to the first fuel quantity setting value of the front fuel tank, and/or the current fuel quantity information of the rear fuel tank is less than or equal to the low oil quantity setting value of the rear fuel tank, the determination device 302 is used to generate The electric pump shutdown information, and the output device 303 sends the electric pump shutdown information generated by the determination device 302 to the electric pump, so that the electric pump acts according to the electric pump shutdown information, so as to prevent excessive pumping of oil into the forward tank and cause oil overflow In case of an accident, at the same time, the determining device 302 also generates an alarm signal, and controls the alarm device to give a corresponding alarm prompt according to the alarm signal.

In addition, when the current fuel quantity information of the current fuel tank is less than the second fuel quantity set value of the front fuel tank, the determining device 302 generates a fast pumping signal of the electric pump, and the output device 303 sends the generated fast pumping signal of the electric pump to the electric pump. pump, so that the electric pump pumps oil according to the fast pump oil signal;

When the current fuel quantity information of the current fuel tank is greater than or equal to the second fuel quantity set value of the front fuel tank, the determining device 302 generates an electric pump slow pump oil signal, and the output device 303 sends the generated electric pump slow pump oil signal to Electric pump, so that the electric pump pumps oil according to the slow pump oil signal;

Wherein, when the electric pump pumps oil according to the fast pump oil signal, the pump oil volume per unit time of the electric pump is greater than when the electric pump pumps oil according to the slow pump oil signal.

In addition, the receiving device 301 is also used to receive the acquired vehicle speed information, tire pressure information and inclination information of the engineering vehicle;

The determining device 302 is also used to determine whether the vehicle is in a stationary state according to the vehicle speed information. If the vehicle speed information of the engineering vehicle is zero, then determine that the engineering vehicle is in a stationary state; and is used to determine whether the vehicle is in a horizontal state according to the tire pressure information and inclination information If the tire pressure information of each tire is equal and the inclination information of the engineering vehicle is zero, it is determined that the engineering vehicle is in a horizontal state.

When the engineering vehicle is not in a stationary state, and/or the engineering vehicle is not in a horizontal state, the determining device 302 generates an alarm signal, and controls the alarm device to give a corresponding alarm prompt to remind the operator to adjust the horizontal position of the engineering vehicle and stop.

In addition, the current status information of the above-mentioned oil pumping system also includes the working time information of the electric pump;

When the working time information of the electric pump is less than the set working time, the determination device 302 is also used to generate electric pump start information, and the output device 303 sends the electric pump start information generated by the determination device 302 to the electric pump, so that the electric pump Continue to open to perform oil pumping operation; when the working time of the electric pump is greater than or equal to the set working time, the determining device 302 is also used to generate the closing information of the electric pump, and the output device 303 sends the closing information of the electric pump generated by the determining device 302 to Electric pump to turn off the electric pump.

Based on the same concept as the above control method, the embodiment of the present invention also provides an engineering vehicle oil pump control system, which is used to control the action of the electric pump 403 connected to the front fuel tank 401 and the rear fuel tank 402 through the oil delivery pipe; as shown in Figure 4, The control system includes:

A detection device for detecting current status information of the oil pumping system in the construction vehicle; and

The oil pumping controller 404 is respectively connected with the detection device and the electric pump 403 for signals, and is used to determine the current action information of the electric pump 403 according to the magnitude relationship between the current status information of the oil pump system detected by the detection device and the set value, And the electric pump 403 is controlled to act according to the current action information of the electric pump 403 .

In the control system provided by the embodiment of the present invention, the oil pump controller can adjust the action of the electric pump 403 according to the magnitude relationship between the current state information of the oil pump system detected by the detection device and the set value, so in the front oil tank 401 When the amount of oil is about to be filled up, the oil pump controller can control the electric pump 403 to close in time, so as to avoid the oil in the front oil tank 401 from overflowing due to overfilling, thereby ensuring the safety when pumping oil from the rear oil tank 402 to the front oil tank 401 sex.

Specifically, the detection device includes a front fuel tank oil quantity detection device 405 installed in the front fuel tank 401 to detect the current fuel quantity information of the front fuel tank 401, and a rear fuel tank oil quantity detector 405 installed in the rear fuel tank 402 to detect the current fuel quantity information of the rear fuel tank 402. Quantity detection device 406;

The oil pump controller 404 is respectively connected with the front fuel tank fuel quantity detection device 405 and the rear fuel tank fuel quantity detection device 406 signal connection, the current fuel quantity information of the current fuel tank 401 is less than the first fuel quantity setting value of the front fuel tank 401, and the rear fuel tank 402 When the current oil volume information of the current fuel tank 401 is greater than the low oil volume setting value of the rear fuel tank 402, the oil pump controller 404 controls the electric pump 403 to open to perform the oil pumping operation; When the oil quantity setting value and/or the current oil quantity information of the rear fuel tank 402 is less than or equal to the low oil quantity setting value of the rear fuel tank 402, the pump oil controller 404 controls the electric pump 403 to close, so as to avoid pumping in the forward fuel tank 401. Oil spills due to excess oil.

Wherein, the first fuel quantity setting value is the upper limit of the fuel quantity that can be loaded in the front fuel tank 401, and when the current fuel quantity information in the current fuel tank 401 exceeds the first fuel quantity setting value, the front fuel tank 401 is prone to oil spill accidents.

More specifically, the above-mentioned front fuel tank fuel quantity detection device 405 is a fuel quantity sensor, a liquid level switch or a liquid level gauge;

The above-mentioned rear oil tank oil quantity detection device 406 is an oil quantity sensor, a liquid level switch or a liquid level gauge.

Detect the current oil quantity information in the front oil tank 401 and the rear oil tank 402 by an oil quantity sensor, a liquid level switch or a liquid level gauge, to ensure that the current oil quantity information of the front oil tank 401 and the current oil quantity information of the rear oil tank 402 obtained by the oil pump controller 404 The accuracy of the oil quantity information enables the oil pump controller 404 to control the closing of the electric pump 403 in a more timely manner, further improving the safety of the process of pumping oil from the rear oil tank 402 to the front oil tank 401 .

Please continue to refer to Fig. 4, in a preferred implementation, the control system provided by the embodiment of the present invention also includes an alarm device connected to the oil pump controller 404 signal; and the current oil quantity information of the current fuel tank 401 is greater than or equal to the front fuel tank 401 When the first oil volume setting value of the first oil volume and/or the current oil volume information of the rear oil tank 402 is less than or equal to the low oil volume setting value of the rear oil tank 402, the oil pump controller 404 can also generate an alarm signal and send it to the alarm device , so that the alarm device performs a corresponding alarm prompt according to the alarm signal. Therefore, the operator can be reminded to turn off the oil pump switch in time, which further improves the safety of the oil pumping process from the rear oil tank 402 to the front oil tank 401 .

Please continue to refer to Figure 4, further, the detection device further includes: an inclination sensor 407 installed on the chassis of the engineering vehicle to detect the inclination information of the vehicle, and a tire pressure sensor 408 installed on the tire of the engineering vehicle to detect the tire pressure information of the tire ;

The oil pump controller 404 is respectively connected with the inclination sensor 407, the tire pressure sensor 408, and the control bus of the engineering vehicle, and is used to receive the vehicle speed information through the control bus. If the vehicle speed information of the engineering vehicle is zero, it is determined that the engineering vehicle is in a stationary state; If the tire pressure information of each tire is equal and the inclination information of the construction vehicle is zero, it is determined that the construction vehicle is in a horizontal state.

In some optional implementations, the oil pump controller 404 is also provided with a clock circuit that records the working time of the electric pump 403; when the working time information of the electric pump 403 is less than the set working time, the oil pump controller 404 generates an electric pump start information, and continue to control the electric pump 403 to start to pump oil according to the electric pump start information; The pump off information controls the electric pump 403 to turn off.

In addition, an embodiment of the present invention also provides an engineering vehicle with the above oil pump control system.

Since the oil pumping control system of the engineering vehicle can ensure the safety when oil is pumped from the rear oil tank 402 to the front oil tank 401, the engineering vehicle provided by the embodiment of the present invention has high safety and reliability.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (19)

1. an engineering vehicle pump oil controlling method, is characterized in that, comprising:

Obtain the current state information of oil pumping system in engineering vehicle;

According to the magnitude relationship between the current state information of the oil pumping system getting and setting value, determine the current action message of motor-drive pump, and control motor-drive pump action according to the current action message of motor-drive pump.

2. controlling method according to claim 1, is characterized in that, the current state information of described oil pumping system comprises the current oil mass information of front fuel tank and the current oil mass information of rear fuel tank;

The current state information of the oil pumping system that described basis is obtained and the magnitude relationship between setting value, determine the current action message of motor-drive pump, and control motor-drive pump action according to the current action message of motor-drive pump, specifically comprises:

When the current oil mass information of current fuel tank is less than the first oil mass setting value of front fuel tank and the current oil mass information of rear fuel tank and is greater than the low level oil mass setting value of rear fuel tank, generate motor-drive pump opening information, and according to motor-drive pump opening information, control motor-drive pump and open to carry out the operation of pump oil;

When the current oil mass information of current fuel tank is more than or equal to the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank and is less than or equal to the low level oil mass setting value of rear fuel tank, generate motor-drive pump closing information, according to motor-drive pump closing information, control motor-drive pump and close.

3. controlling method according to claim 2, it is characterized in that, when the oil mass information of described current fuel tank is more than or equal to the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank and is less than or equal to the low level oil mass setting value of rear fuel tank, also generate alarm signal, and according to alarm signal, control warning device and carry out corresponding alarm.

4. controlling method according to claim 2, it is characterized in that, the oil pumping system current state information that described basis is obtained and the magnitude relationship between setting value, determine the current action message of motor-drive pump, and control motor-drive pump action according to the current action message of motor-drive pump, also comprise:

When the current oil mass information of current fuel tank is less than the second oil mass setting value of front fuel tank, generate motor-drive pump rapid pump oil signal, and according to motor-drive pump rapid pump oil SC sigmal control motor-drive pump pump oil;

When the current oil mass information of current fuel tank is more than or equal to the second oil mass setting value of front fuel tank, generate motor-drive pump pump oil signal at a slow speed, and pump oil SC sigmal control motor-drive pump pump is oily at a slow speed according to motor-drive pump;

During wherein, according to motor-drive pump rapid pump oil SC sigmal control motor-drive pump pump oil, the pump oil mass of motor-drive pump in the unit time is greater than the pump oil mass of motor-drive pump in unit time when pump oil SC sigmal control motor-drive pump pump is oily at a slow speed according to motor-drive pump.

5. controlling method according to claim 1, is characterized in that, described in obtain oil pumping system current state information, also comprise before:

Obtain speed information, tire pressure and the obliquity information of engineering vehicle;

According to speed information, determine whether vehicle remains static, if when the speed information of engineering vehicle is zero, determine that engineering vehicle remains static;

According to tire pressure and obliquity information, judge that whether vehicle is in level, if when the tire pressure of each tire equates and the obliquity information of engineering vehicle is zero, determine that engineering vehicle is in level;

When determining described engineering vehicle in level and remaining static, control motor-drive pump and carry out subsequent action.

6. according to the controlling method described in claim 1～5 any one, it is characterized in that, the current state information of described oil pumping system also comprises the operating time information of motor-drive pump;

The oil pumping system current state information that described basis is obtained and the magnitude relationship between setting value, determine the current action message of motor-drive pump, and control motor-drive pump action according to the current action message of motor-drive pump, also comprises:

When the operating time of motor-drive pump information is less than setting during the operating time, generate motor-drive pump opening information, and according to motor-drive pump opening information, control motor-drive pump and continue to open to carry out the oily operation of pump;

When the motor-drive pump operating time, be more than or equal to setting during the operating time, generate motor-drive pump closing information, according to motor-drive pump closing information, control motor-drive pump and close.

7. an engineering vehicle pump oil control gear, is characterized in that, comprising:

Receiving equipment, for receiving the current state information of the engineering vehicle oil pumping system obtaining;

Determine equipment, for determining the current action message of motor-drive pump according to current state information and the magnitude relationship between setting value of the oil pumping system getting;

Output unit, for the current action message of definite motor-drive pump is handed down to motor-drive pump, so that motor-drive pump moves according to the current action message of motor-drive pump.

8. control gear according to claim 7, is characterized in that, the current state information of described oil pumping system comprises the current oil mass information of front fuel tank and the current oil mass information of rear fuel tank;

Described definite equipment, when being less than the first oil mass setting value of front fuel tank and the current oil mass information of rear fuel tank and being greater than the low level oil mass setting value of rear fuel tank specifically for the current oil mass information of current fuel tank, generates motor-drive pump opening information; When the current oil mass information of current fuel tank is more than or equal to the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank and is less than or equal to the low level oil mass setting value of rear fuel tank, generate motor-drive pump closing information.

9. control gear according to claim 8, is characterized in that,

Described definite equipment, is also more than or equal to and when the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank are less than or equal to the low level oil mass setting value of rear fuel tank, generates alarm signal for the current oil mass information of current fuel tank;

Described output unit, also for the definite alarm signal of described definite equipment is handed down to warning device, so that warning device carries out corresponding alarm according to this alarm signal.

10. control gear according to claim 8, is characterized in that,

When the current oil mass information of current fuel tank is less than the second oil mass setting value of front fuel tank, described definite equipment generates motor-drive pump rapid pump oil signal, and described output unit is handed down to motor-drive pump by described motor-drive pump rapid pump oil signal, so that motor-drive pump is according to described motor-drive pump rapid pump oil signal pump oil;

When the current oil mass information of current fuel tank is more than or equal to the second oil mass setting value of front fuel tank, described definite equipment generates motor-drive pump pump oil signal at a slow speed, and described output unit by described motor-drive pump at a slow speed pump oil signal be handed down to motor-drive pump so that motor-drive pump is according to described motor-drive pump pump oil signal pump oil at a slow speed;

The pump oil mass of motor-drive pump in the unit time when pump oil mass of motor-drive pump in the unit time is greater than motor-drive pump according to pump oil signal pump oil at a slow speed when wherein, motor-drive pump is according to rapid pump oil signal pump oil.

11. control gear according to claim 7, is characterized in that,

Described receiving equipment, also for receiving speed information, tire pressure and the obliquity information of the engineering vehicle obtaining;

Described definite equipment, also for determining according to speed information whether vehicle remains static, if when the speed information of engineering vehicle is zero, determines that engineering vehicle remains static; According to tire pressure and obliquity information, judge that whether vehicle is in level, if when the tire pressure of each tire equates and the obliquity information of engineering vehicle is zero, determine that engineering vehicle is in level.

12. according to the control gear described in claim 7～11 any one, it is characterized in that, the current state information of described oil pumping system also comprises the operating time information of motor-drive pump;

When the operating time of motor-drive pump information is less than setting during the operating time, described definite equipment is also for generating motor-drive pump opening information, and the motor-drive pump opening information that described output unit generates described definite equipment is handed down to motor-drive pump, so that motor-drive pump continues to open to carry out the operation of pump oil; When the motor-drive pump operating time, be more than or equal to setting during the operating time, described definite equipment is also for generating motor-drive pump closing information, and the motor-drive pump closing information that described output unit generates described definite equipment is handed down to motor-drive pump so that motor-drive pump cuts out.

13. 1 kinds of engineering vehicle pump EFM Electronic Fuel Managements, move for controlling the motor-drive pump being connected by transport pipe with rear fuel tank with front fuel tank; It is characterized in that, comprising:

Detect the detection device of the current state information of oil pumping system in engineering vehicle; And

Pump oil controller, be connected with motor-drive pump signal with described detection device respectively, current state information and the magnitude relationship between setting value for the oil pumping system that detects according to detection device are determined the current action message of motor-drive pump, and control motor-drive pump action according to the current action message of motor-drive pump.

14. control system according to claim 13, is characterized in that,

Described detection device comprises: the front fuel tank fuel quantity detection device of the current oil mass information of fuel tank before being installed in front fuel tank, detecting; Be installed in rear fuel tank, detect the rear fuel tank oil mass detection device of the current oil mass information of rear fuel tank;

Described pump oil controller, be connected with rear fuel tank oil mass detection device signal with described front fuel tank fuel quantity detection device respectively, when being less than the first oil mass setting value of front fuel tank and the current oil mass information of rear fuel tank and being greater than the low level oil mass setting value of rear fuel tank specifically for the current oil mass information of current fuel tank, generate motor-drive pump opening information, and according to motor-drive pump opening information, control motor-drive pump and open to carry out the operation of pump oil; When the current oil mass information of current fuel tank is more than or equal to the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank and is less than or equal to the low level oil mass setting value of rear fuel tank, generate motor-drive pump closing information, according to motor-drive pump closing information, control motor-drive pump and close.

15. control system according to claim 14, is characterized in that, described front fuel tank fuel quantity detection device is fuel-quantity transducer, liquid-level switch or level meter;

Described rear fuel tank oil mass detection device is fuel-quantity transducer, liquid-level switch or level meter.

16. control system according to claim 14, is characterized in that, also comprise the warning device being connected with described pump oil controller signals;

Described pump oil controller, when being also more than or equal to the first oil mass setting value of front fuel tank and/or the current oil mass information of rear fuel tank and being less than or equal to the low level oil mass setting value of rear fuel tank for the current oil mass information of current fuel tank, generate alarm signal and be handed down to described warning device, making described warning device carry out corresponding alarm according to described alarm signal.

17. control system according to claim 13, it is characterized in that, described detection device also comprises: be installed on the chassis of described engineering vehicle, the dip sensor of detection car load obliquity information, and be installed on the tire of described engineering vehicle, detect the tyre pressure sensor of the tire pressure of tire;

Described pump oil controller is connected with the control bus of tyre pressure sensor and described engineering vehicle with described dip sensor respectively, for accepting speed information by described control bus, if the speed information of engineering vehicle is zero, determine that engineering vehicle remains static; If the tire pressure of each tire equates and the obliquity information of engineering vehicle is zero, determine that engineering vehicle is in level.

18. control system according to claim 13, is characterized in that, in described pump oil controller, are also provided with the clock circuit that records the described motor-drive pump operating time;

Described pump oil controller, is also less than setting during the operating time for the operating time information when motor-drive pump, generates motor-drive pump opening information, and according to motor-drive pump opening information, controls motor-drive pump and continue to open to carry out the oily operation of pump; When the motor-drive pump operating time, be more than or equal to setting during the operating time, generate motor-drive pump closing information, according to motor-drive pump closing information, control motor-drive pump and close.

19. 1 kinds of engineering vehicles, is characterized in that, comprise the engineering vehicle pump EFM Electronic Fuel Management as described in claim 13～18 any one.

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