CN-121993581-A - Method, device, apparatus, medium, program, and vehicle for controlling lubricant pump

CN121993581ACN 121993581 ACN121993581 ACN 121993581ACN-121993581-A

Abstract

The invention relates to a lubricant oil pump control method, a device, equipment, a medium, a program and a vehicle, and relates to the technical field of electric pumps, wherein the method comprises the steps of responding to the disconnection state of a disconnection mechanism, determining the corresponding lubricant temperature according to the mapping relation between the vehicle speed and the calibrated, wherein the mapping relation comprises the corresponding relation between the vehicle speed and the lubricant temperature; and adjusting the operation parameters of the oil pump according to the magnitude relation between the lubricant temperature and the preset lubricant temperature, wherein the operation parameters comprise at least one of oil pump pumping quantity, oil pump operation time, oil pump pumping time interval, oil pump set rotating speed and oil pump set power. According to the embodiment of the disclosure, the overall operation power consumption of the oil pump control system of the lubricant is remarkably reduced, and the lubrication safety in an extremely high-low temperature environment can be ensured under the condition of not depending on a traditional oil temperature sensor.

Inventors

XIE LIER
ZHANG LONGZHOU
WANG XIAOKAI

Assignees

小米汽车科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260228

Claims (14)

1. A method of controlling an oil pump of a lubricant, comprising: In response to the disengagement mechanism being in a disengaged state, determining a corresponding lubricant temperature based on the vehicle speed and a calibrated map, The map includes a correspondence between the vehicle speed and the lubricant temperature; adjusting the operation parameters of the oil pump according to the magnitude relation between the lubricant temperature and the preset lubricant temperature, The operating parameter includes at least one of an oil pump pumping amount, an oil pump operating duration, an oil pump pumping time interval, an oil pump set rotational speed, and an oil pump set power.
2. The lubricant oil pump control method according to claim 1, wherein determining the corresponding lubricant temperature from the map of the vehicle speed and the calibration in response to the disengagement mechanism being in the disengaged state, comprises: collecting the vehicle speed and the actual measured rotation speed of the oil pump in response to the disengagement mechanism being in a disengagement state; And determining the corresponding lubricant temperature according to the vehicle speed, the actually measured rotating speed and the mapping relation.
3. The lubricant oil pump control method according to claim 2, characterized in that determining the corresponding lubricant temperature based on the vehicle speed, the measured rotational speed, and the map, includes: Determining the preset rotating speed and preset power of the corresponding oil pump according to the vehicle speed and the first mapping relation, The first mapping relation comprises a corresponding relation among the calibrated vehicle speed, the preset rotating speed and the preset power; Collecting the actual measured rotating speed of the oil pump, and determining the speed difference between the actual measured rotating speed and the preset rotating speed; Determining a corresponding lubricant temperature according to the speed difference, the preset power and a second mapping relation, The second map includes a correspondence between the calibrated speed difference, the power, and the lubricant temperature.
4. The method for controlling an oil pump of a lubricant according to claim 3, wherein, In the first mapping relation, the vehicle speed and the preset rotating speed are in positive correlation, And/or, the vehicle speed and the preset power are positively correlated.
5. The method for controlling an oil pump of a lubricant according to claim 3, wherein, In the second map, the speed difference and the lubricant temperature are inversely related, And/or, the speed difference and the preset power are in positive correlation.
6. The lubricant oil pump control method according to claim 1, wherein adjusting the operation parameters of the oil pump according to the magnitude relation between the lubricant temperature and a preset lubricant temperature comprises: Judging whether the lubricant temperature is less than or equal to a preset lubricant temperature; And responsive to the lubricant temperature being less than or equal to the preset lubricant temperature, determining to pump the lubricant in a continuous lubrication mode.
7. The method of controlling an oil pump of a lubricant according to claim 1, wherein adjusting the operation parameter of the oil pump according to the magnitude relation between the lubricant temperature and a preset lubricant temperature, further comprises: Judging whether the temperature of the lubricant is higher than a preset lubricant temperature or not; Responsive to the lubricant temperature being greater than the preset lubricant temperature, it is determined to pump lubricant in an intermittent lubrication mode.
8. The oil pump control method of a lubricant according to claim 6 or 7, characterized by further comprising: testing the viscosity and the temperature of the lubricant to calibrate the viscosity and the temperature of the lubricant according to the test result; and determining the temperature corresponding to the inflection point of the viscosity of the lubricant so as to determine the preset lubricant temperature.
9. The method for controlling an oil pump of a lubricant according to claim 7, wherein the intermittent lubrication mode includes the lubricant temperature being inversely related to the pumping amount of the oil pump, And/or, the lubricant temperature is inversely related to the oil pump set rotation speed, And/or, the lubricant temperature is inversely related to the oil pump setting power, And/or, the lubricant temperature is inversely related to the oil pump operation duration, And/or the lubricant temperature is positively correlated to the oil pump pumping time interval.
10. A lubricant oil pump control apparatus, characterized in that the lubricant oil pump control apparatus is capable of performing the lubricant oil pump control method of any one of claims 1 to 9, the lubricant oil pump control apparatus comprising: A temperature determining unit for determining a corresponding lubricant temperature according to a map of the vehicle speed and the calibration in response to the disengagement mechanism being in the disengaged state, The map includes a correspondence between the vehicle speed and the lubricant temperature; a parameter adjusting unit for adjusting the operation parameter of the oil pump according to the magnitude relation between the lubricant temperature and the preset lubricant temperature, The operating parameter includes at least one of an oil pump pumping amount, an oil pump operating duration, an oil pump pumping time interval, an oil pump set rotational speed, and an oil pump set power.
11. An electronic device, comprising: A processor; A memory for storing processor-executable instructions; Wherein the processor is configured to implement the oil pump control method of the lubricant according to any one of claims 1 to 9.
12. A non-transitory computer readable storage medium, characterized in that instructions in the storage medium, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the method of oil pump control of a lubricant according to any one of claims 1-9.
13. A computer program product, characterized by comprising a computer program that is executed by a processor for the oil pump control method of a lubricant according to any one of claims 1-9.
14. A vehicle characterized by being provided with the lubricant oil pump control device according to claim 10, and/or the electronic equipment according to claim 11, and/or performing the lubricant oil pump control method according to any one of claims 1 to 9.

Description

Method, device, apparatus, medium, program, and vehicle for controlling lubricant pump Technical Field The disclosure relates to the technical field of electric pumps, in particular to a lubricant oil pump control method, a lubricant oil pump control device, a lubricant oil pump control equipment, a lubricant oil pump control medium, a lubricant oil pump control program and a lubricant oil pump control vehicle. Background In the related art, a lubricant is a life line of a vehicle transmission system, which remarkably reduces wear and frictional power consumption by forming a protective oil film between moving parts, and effectively guides out heat generated by gears, bearings, etc., preventing local overheating failure, and in addition, can also take away wear debris and cover metal surfaces to resist corrosion. In highly integrated electric drive systems, precise delivery and management of lubricant directly affects transmission efficiency, NVH performance, component life, and system reliability. Particularly, under complex working conditions such as a disengaging mechanism, the intelligent lubrication of the whole temperature range without a temperature sensor is realized, and the intelligent lubrication is a key technical challenge for guaranteeing the durable and efficient operation of the system. Disclosure of Invention To overcome the problems in the related art, the present disclosure provides an oil pump control method, apparatus, device, medium, program, and vehicle of a lubricant. According to a first aspect of embodiments of the present disclosure, there is provided a method of controlling an oil pump of a lubricant, the method including: In response to the disengagement mechanism being in a disengaged state, determining a corresponding lubricant temperature based on a map of vehicle speed and calibration, The map includes a correspondence between the vehicle speed and the lubricant temperature; adjusting the operation parameters of the oil pump according to the magnitude relation between the lubricant temperature and the preset lubricant temperature, The operating parameter includes at least one of an oil pump pumping amount, an oil pump operating duration, an oil pump pumping time interval, an oil pump set rotational speed, and an oil pump set power. In some exemplary embodiments of the present disclosure, responsive to the disengagement mechanism being in a disengaged state, determining a corresponding lubricant temperature from a map of vehicle speed and calibration includes: collecting the vehicle speed and the actual measured rotation speed of the oil pump in response to the disengagement mechanism being in a disengagement state; And determining the corresponding lubricant temperature according to the vehicle speed, the actually measured rotating speed and the mapping relation. In some exemplary embodiments of the present disclosure, determining a corresponding lubricant temperature from the vehicle speed, the measured rotational speed, and the map includes: Determining the preset rotating speed and preset power of the corresponding oil pump according to the vehicle speed and the first mapping relation, The first mapping relation comprises a corresponding relation among the calibrated vehicle speed, the preset rotating speed and the preset power; Collecting the actual measured rotating speed of the oil pump, and determining the speed difference between the actual measured rotating speed and the preset rotating speed; Determining a corresponding lubricant temperature according to the speed difference, the preset power and a second mapping relation, The second map includes a correspondence between the calibrated speed difference, the power, and the lubricant temperature. In some exemplary embodiments of the present disclosure, in the first map, the vehicle speed and the preset rotational speed are positively correlated, and/or the vehicle speed and the preset power are positively correlated. In some exemplary embodiments of the present disclosure, in the second map, the speed difference and the lubricant temperature are inversely related, and/or the speed difference and the preset power are positively related. In some exemplary embodiments of the present disclosure, adjusting the operating parameters of the oil pump according to the magnitude relation between the lubricant temperature and a preset lubricant temperature includes: Judging whether the lubricant temperature is less than or equal to a preset lubricant temperature; And responsive to the lubricant temperature being less than or equal to the preset lubricant temperature, determining to pump the lubricant in a continuous lubrication mode. In some exemplary embodiments of the present disclosure, adjusting the operating parameter of the oil pump according to a magnitude relation between the lubricant temperature and a preset lubricant temperature further includes: Judging whether the temperature of the lubricant is higher than a preset