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Transmission fluid pump speed control systems and methods

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Publication number
CN104214331A
CN104214331A CN 201410233761 CN201410233761A CN104214331A CN 104214331 A CN104214331 A CN 104214331A CN 201410233761 CN201410233761 CN 201410233761 CN 201410233761 A CN201410233761 A CN 201410233761A CN 104214331 A CN104214331 A CN 104214331A
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Prior art keywords
transmission
fluid
speed
pump
target
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CN 201410233761
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Chinese (zh)
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CN104214331B (en )
Inventor
M.L.巴思
E.S.特里安
A.K.纳克维
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通用汽车环球科技运作有限责任公司
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10Other safety measures
    • F04B49/103Responsive to speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10Other safety measures
    • F04B49/106Responsive to pumped volume
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021Generation or control of line pressure
    • F16H61/0025Supply of control fluid; Pumps therefore
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021Generation or control of line pressure
    • F16H2061/0037Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing

Abstract

A transmission fluid pump control system of a vehicle includes a target speed module and a speed control module. The target speed module determines a target speed of an electric transmission fluid pump based on a target output flowrate of the electric transmission fluid pump, a predetermined maximum allowable amount of leakage of transmission fluid pumps, and an efficiency of the electric transmission fluid pump. The speed control module applies power to the electric transmission fluid pump based on the target speed.

Description

变速器流体泵速度控制系统和方法 Transmission fluid pump speed control system and method

[0001] 相关申请的交叉引用 CROSS [0001] REFERENCE TO RELATED APPLICATIONS

本申请要求提交于2013年5月29日的美国临时申请号61/828,230的权益。 This application claims priority to 61 / 828,230 and US Provisional Application No. 29 May 2013 of. 以上申请的公开内容以其全文通过引用并入本文中。 The disclosure of the above application in its entirety by reference herein.

技术领域 FIELD

[0002] 本公开涉及车辆变速器,并且更具体地涉及用于变速器流体泵的速度控制系统和方法。 [0002] The present disclosure relates to vehicle transmissions, and more particularly, to a fluid pump for a transmission rate control system and method.

背景技术 Background technique

[0003] 在此提供的背景技术描述用于总体上介绍本公开的背景。 [0003] The background description provided herein is for general background of the present disclosure. 当前署名发明人的工作(在背景技术部分描述的程度上)以及本描述中否则不足以作为申请时现有技术的各方面,既不明显地也非隐含地被承认为与本公开相抵触的现有技术。 Work of the presently named inventors (to the extent described in the background section) and the prior art aspects of the present description, when not otherwise qualify as filing, are neither expressly nor impliedly admitted as inconsistent with the present disclosure prior art.

[0004] 发动机生成扭矩并将扭矩输出到变速器。 [0004] The torque produced by the engine and torque output to the transmission. 车辆的自动变速器可包括多个流体控制的摩擦元件,例如离合器。 Automatic transmission of a vehicle may comprise a friction element of a plurality of fluid control, such as clutch. 控制模块可以接合和脱开摩擦元件以在变速器内建立不同的齿轮齿数比(也称为速度比)。 The control module can be engaged and disengaged friction elements to establish the different gear (also referred to as a velocity ratio) in the transmission ratio.

[0005] 变速器包括变速器流体泵。 [0005] The transmission includes a transmission fluid pump. 变速器流体泵提供变速器流体以用于应用变速器的离合器、润滑变速器部件和冷却变速器部件。 Transmission fluid pump provides transmission fluid for application to the transmission clutches, cooling and lubricating the transmission member of the transmission member. 一些变速器流体泵为机械驱动的(例如由发动机)。 Some transmission fluid pump is mechanically driven (e.g., by the engine). 其它变速器流体泵为电驱动的。 Other transmission fluid pump is electrically driven.

发明内容 SUMMARY

[0006] 一种车辆的变速器流体泵控制系统包括目标速度模块和速度控制模块。 [0006] A vehicle transmission fluid pump control system includes a target speed and a speed control module module. 目标速度模块基于电动变速器流体泵的目标输出流率(flowrate)、变速器流体泵的预定最大可允许泄漏量和电动变速器流体泵的效率来确定电动变速器流体泵的目标速度。 Target speed module based on the electric transmission fluid pump target flow rate output (flowrate), a predetermined maximum allowable transmission efficiency of the fluid pump and the electric leakage of the transmission fluid pump to determine the target transmission speed of the electric fluid pump. 速度控制模块基于目标速度将功率施加到电动变速器流体泵。 Speed ​​control module based on the target speed is applied to the electric power transmission fluid pump.

[0007] 在另外的特征中,目标速度模块进一步基于电动变速器流体泵的排量确定电动变速器流体泵的目标速度。 [0007] In still other features, the target speed module further determines a target speed of the electric motor based on the transmission fluid pump transmission fluid displacement of the pump.

[0008] 在还有一些特征中,目标速度模块将目标速度设置为等于总和除以排量并且基于目标输出流率加上预定最大可允许泄漏量和效率的乘积来设置所述总和。 [0008] In still other features, the target speed target speed module is set equal to the sum divided by the displacement based on the target output flow rate plus the product of a predetermined maximum allowable leakage and efficiency to set the sum.

[0009] 在另外一些特征中,目标速度模块将目标速度设置为等于总和除以排量并且基于目标输出流率加上预定最大可允许泄漏量加上效率来设置所述总和。 [0009] In other features, the target speed target speed module is set equal to the sum divided by the displacement based on the target output flow rate plus the predetermined maximum allowable leakage rate plus the sum set efficiency.

[0010] 在另外的特征中,效率模块基于为电动变速器流体泵确定的速度和具有预定最大可允许泄漏量的变速器流体泵的预定速度来确定电动变速器流体泵的效率。 [0010] In still other features, the efficiency of the module is determined based on the electric transmission fluid pump having a predetermined velocity and a predetermined velocity maximum allowable leakage of transmission fluid pump to determine the transmission efficiency of the electric fluid pump.

[0011] 在还有一些特征中,效率模块将电动变速器流体泵的效率设置为等于为电动变速器流体泵确定的速度除以预定速度。 [0011] In still other features, the transmission efficiency of the electric efficiency of the module to the fluid pump is set equal to the predetermined speed divided by the fluid pump is an electric transmission speed determined.

[0012] 在另外一些特征中,速度确定模块基于使用变速器流体传感器测量的变速器流体的压力来确定电动变速器流体泵的速度。 [0012] In other features, the speed determination module determines the speed of the electric transmission fluid pump based on the pressure measured by the sensor using the transmission fluid transmission fluid.

[0013] 在另外的特征中,速度确定模块将电动变速器流体泵的速度设置为等于当压力中的减小大于预定压力时的当前速度。 [0013] In still other features, the transmission speed determination module of the electric fluid pump is set equal to the speed when the current speed decreases when the pressure is greater than a predetermined pressure.

[0014] 在还有一些特征中,目标速度模块基于变速器流体的温度和变速器流体的压力来确定预定最大可允许泄漏量。 [0014] In still other features, the target speed module based on the pressure and temperature of the transmission fluid transmission fluid to determine a predefined maximum allowable leakage.

[0015] 在另外一些特征中,目标流率模块基于电动变速器流体泵的目标输出压力来确定电动变速器流体泵的目标输出流率。 [0015] In other features, the target flow rate based on the electric module of the target output pressure of the transmission fluid pump to determine a target output flow rate of the electric transmission fluid pump.

[0016] 一种用于车辆的变速器流体泵控制方法包括:基于电动变速器流体泵的目标输出流率、变速器流体泵的预定最大可允许泄漏量和电动变速器流体泵的效率来确定电动变速器流体泵的目标速度;以及基于目标速度将功率施加到电动变速器流体泵。 A fluid pump control method of the transmission [0016] for a vehicle comprising: a motor based on the target output flow rate of the fluid pump of the transmission, transmission fluid pump to a predetermined maximum allowable amount of leakage and the efficiency of the electric fluid pump to determine the transmission power of the transmission fluid pump a target speed; and the electric power applied to the transmission fluid pump based on the target speed.

[0017] 在另外的特征中,变速器流体泵控制方法还包括进一步基于电动变速器流体泵的排量来确定电动变速器流体泵的目标速度。 [0017] In still other features, the transmission fluid pump control method further comprises further determining a target speed of the electric motor based on the transmission fluid pump transmission fluid displacement of the pump.

[0018] 在还有一些特征中,变速器流体泵控制方法还包括:将目标速度设置为等于总和除以排量;以及基于目标输出流率加上预定最大可允许泄漏量和效率的乘积来设置所述总和。 [0018] In still other features, the transmission fluid pump control method further comprising: setting the target speed equal to the sum divided by the displacement; and adding a product of a predetermined maximum allowable leakage and efficiency based on the target output flow rate setting said sum.

[0019] 在另外一些特征中,变速器流体泵控制方法还包括:将目标速度设置为等于总和除以排量;以及基于目标输出流率加上预定最大可允许泄漏量加上效率来设置所述总和。 [0019] In other features, the transmission fluid pump control method further comprising: setting the target speed equal to the sum divided by the displacement; and based on the target output flow rate plus a predefined maximum allowable leakage rate plus the efficiency provided sum.

[0020] 在另外的特征中,变速器流体泵控制方法还包括基于为电动变速器流体泵确定的速度和具有预定最大可允许泄漏量的变速器流体泵的预定速度来确定电动变速器流体泵的效率。 [0020] In still other features, the transmission fluid pump control method further comprises determining the transmission efficiency of the electric fluid pump is determined based on the transmission fluid pump motor speed and a predetermined speed with a predetermined maximum allowable amount of leakage of transmission fluid pump.

[0021] 在还有一些特征中,变速器流体泵控制方法还包括将电动变速器流体泵的效率设置为等于为电动变速器流体泵确定的速度除以预定速度。 [0021] In still other features, the transmission fluid pump control method further includes the transmission efficiency of the electric fluid pump is set equal to the predetermined speed divided by the fluid pump is an electric transmission speed determined.

[0022] 在另外一些特征中,变速器流体泵控制方法还包括基于使用变速器流体传感器测量的变速器流体的压力来确定电动变速器流体泵的速度。 [0022] In other features, the transmission fluid pump control method further comprises determining a motor speed based on the transmission fluid pump used transmission fluid pressure sensor to measure the transmission fluid.

[0023] 在另外的特征中,变速器流体泵控制方法还包括将电动变速器流体泵的速度设置为等于当压力中的减小大于预定压力时的当前速度。 [0023] In still other features, the transmission fluid pump control method further comprises the electric transmission fluid pump speed is set equal to the current speed decreases when the pressure is greater than a predetermined pressure.

[0024] 在还有一些特征中,变速器流体泵控制方法还包括基于变速器流体的温度和变速器流体的压力来确定预定最大可允许泄漏量。 [0024] In still other features, the transmission further comprising a fluid pump control method based on temperature and pressure transmission fluid transmission fluid to determine a predefined maximum allowable leakage.

[0025] 在另外一些特征中,变速器流体泵控制方法还包括基于电动变速器流体泵的目标输出压力来确定电动变速器流体泵的目标输出流率。 [0025] In other features, the transmission fluid pump control method further comprises determining a target output flow rate of the electric transmission fluid pump based on the target transmission power output pressure fluid pump.

[0026] 本发明还包括如下方案: [0026] The present invention further includes the following programs:

1.一种车辆的变速器流体泵控制系统,包括: Transmission fluid pump control system for a vehicle, comprising:

目标速度模块,其基于电动变速器流体泵的目标输出流率、变速器流体泵的预定最大可允许泄漏量和所述电动变速器流体泵的效率来确定所述电动变速器流体泵的目标速度;以及 Target speed module, based on the target output flow rate of the electric pump transmission fluid, transmission fluid pump a predetermined maximum allowable leakage fluid pump and the transmission efficiency of electric determining a target speed of the electric transmission fluid pump; and

速度控制模块,其基于所述目标速度将功率施加到所述电动变速器流体泵。 Speed ​​control module, which is based on the target speed is applied to the electric power transmission fluid pump.

[0027] 2.根据方案I所述的变速器流体泵控制系统,其中,所述目标速度模块进一步基于所述电动变速器流体泵的排量来确定所述电动变速器流体泵的所述目标速度。 [0027] The control program of the transmission fluid pump system of claim I, wherein the target speed module further determines the target transmission speed of the electric fluid pump based on the electric transmission fluid displacement of the pump.

[0028] 3.根据方案2所述的变速器流体泵控制系统,其中,所述目标速度模块将所述目标速度设置为等于总和除以所述排量,并且基于所述目标输出流率加上所述预定最大可允许泄漏量和所述效率的乘积来设置所述总和。 [0028] The transmission fluid pump control system of embodiment 2, wherein said target speed setting module sets the target speed is equal to the sum divided by said displacement, and based on the target output flow rate plus a product of the predetermined maximum allowable amount of leakage and the efficiency of setting the sum.

[0029] 4.根据方案2所述的变速器流体泵控制系统,其中,所述目标速度模块将所述目标速度设置为等于总和除以所述排量,并且基于所述目标输出流率加上所述预定最大可允许泄漏量加上所述效率来设置所述总和。 [0029] The transmission fluid pump control system of embodiment 2, wherein said target speed setting module sets the target speed is equal to the sum divided by said displacement, and based on the target output flow rate plus the predefined maximum allowable leakage rate plus the sum of the efficiency is provided.

[0030] 5.根据方案I所述的变速器流体泵控制系统,还包括效率模块,所述效率模块基于为所述电动变速器流体泵确定的速度和用于具有所述预定最大可允许泄漏量的变速器流体泵的预定速度来确定所述电动变速器流体泵的所述效率。 [0030] The transmission fluid pump control system according to the embodiment I, further comprising a module efficiency, the efficiency of the module is based on the electric transmission fluid pump having a determined speed, and the predetermined maximum allowable amount of leakage a predetermined speed of the transmission fluid pump to determine the transmission efficiency of the electric fluid pump.

[0031] 6.根据方案5所述的变速器流体泵控制系统,其中,所述效率模块将所述电动变速器流体泵的所述效率设置为等于为所述电动变速器流体泵确定的所述速度除以所述预定速度。 [0031] The transmission fluid pump control system according to embodiment 5, wherein the module efficiency of the transmission efficiency of the electric fluid pump is set to be equal except for the speed of the transmission of the electric fluid pump is determined at the predetermined speed.

[0032] 7.根据方案5所述的变速器流体泵控制系统,还包括速度确定模块,所述速度确定模块基于使用变速器流体传感器测量的变速器流体的压力来确定用于所述电动变速器流体泵的所述速度。 [0032] The transmission fluid pump control system according to embodiment 5, further comprising a speed determination module, a speed determination module for determining based on the electric transmission fluid pump used transmission fluid pressure sensor to measure the transmission fluid said speed.

[0033] 8.根据方案7所述的变速器流体泵控制系统,其中,当所述压力的减小大于预定压力时,所述速度确定模块将用于所述电动变速器流体泵的所述速度设置为等于当前速度。 [0033] The transmission fluid pump control system according to claim 7, wherein, when the reduced pressure is greater than a predetermined pressure, the speed determination module for the transmission speed of the electric fluid pump is provided It is equal to the current rate.

[0034] 9.根据方案I所述的变速器流体泵控制系统,其中,所述目标速度模块基于变速器流体的温度和所述变速器流体的压力来确定所述预定最大可允许泄漏量。 [0034] Scheme I according to the transmission fluid pump control system, wherein the target speed module based on the transmission fluid temperature and pressure transmission fluid to determine said predetermined maximum allowable leakage.

[0035] 10.根据方案I所述的变速器流体泵控制系统,还包括目标流率模块,所述目标流率模块基于所述电动变速器流体泵的目标输出压力来确定所述电动变速器流体泵的所述目标输出流率。 [0035] 10. A transmission fluid pump control system according to the embodiment I, further comprising a module target flow rate, the flow rate of the target pressure based on the target output module power transmission fluid pump to determine the transmission electric fluid pump the target output flow rate.

[0036] 11.一种用于车辆的变速器流体泵控制方法,包括: [0036] 11. A fluid pump control method for a transmission for a vehicle, comprising:

基于电动变速器流体泵的目标输出流率、变速器流体泵的预定最大可允许泄漏量和所述电动变速器流体泵的效率来确定所述电动变速器流体泵的目标速度;以及基于所述目标速度将功率施加到所述电动变速器流体泵。 Based on the target output flow rate of the electric pump transmission fluid, transmission fluid pump a predetermined maximum allowable leakage amount and the electric efficiency of the transmission fluid pump to determine a target speed of the electric transmission fluid pump; speed based on the target power transmission is applied to the electric fluid pump.

[0037] 12.根据方案11所述的变速器流体泵控制方法,还包括进一步基于所述电动变速器流体泵的排量来确定所述电动变速器流体泵的所述目标速度。 [0037] The transmission fluid pump 12. The control method of embodiment 11, further comprising a further determines the target transmission speed of the electric fluid pump based on the electric transmission fluid displacement of the pump.

[0038] 13.根据方案12所述的变速器流体泵控制方法,还包括: [0038] 13. The transmission fluid pump control method according to embodiment 12, further comprising:

将所述目标速度设置为等于总和除以所述排量;以及 The divided target speed is set equal to the sum of said displacement; and

基于所述目标输出流率加上所述预定最大可允许泄漏量与所述效率的乘积来设置所述总和。 Based on the target output flow rate plus the predetermined maximum allowable amount of leakage of the product to set the sum of efficiency.

[0039] 14.根据方案12所述的变速器流体泵控制方法,还包括: [0039] 14. The transmission fluid pump control method according to embodiment 12, further comprising:

将所述目标速度设置为等于总和除以所述排量;以及 The divided target speed is set equal to the sum of said displacement; and

基于所述目标输出流率加上所述预定最大可允许泄漏量加上所述效率来设置所述总和。 Based on the target output flow rate plus the predetermined maximum allowable leakage rate plus the sum of the efficiency is provided.

[0040] 15.根据方案11所述的变速器流体泵控制方法,还包括基于为所述电动变速器流体泵确定的速度和用于具有所述预定最大可允许泄漏量的变速器流体泵的预定速度来确定所述电动变速器流体泵的所述效率。 [0040] The transmission fluid pump 15. The control method of embodiment 11, further comprising determining based on the transmission of the electric fluid pump having the predetermined speed and for a predetermined maximum allowable rate of transmission fluid leakage to the pump determining the transmission efficiency of the electric fluid pump.

[0041] 16.根据方案15所述的变速器流体泵控制方法,还包括将所述电动变速器流体泵的所述效率设置为等于为所述电动变速器流体泵确定的所述速度除以所述预定速度。 [0041] 16. The transmission fluid pump control method according to embodiment 15, further comprising the transmission efficiency of the electric fluid pump is provided for determining the speed of the electric transmission fluid pump to be equal to said predetermined divided speed.

[0042] 17.根据方案15所述的变速器流体泵控制方法,还包括基于使用变速器流体传感器测量的变速器流体的压力来确定所述电动变速器流体泵的所述速度。 [0042] 17. The transmission fluid pump control method according to embodiment 15, further comprising determining the transmission speed of the electric fluid pump based on a pressure transmission fluid transmission fluid using a sensor measurement.

[0043] 18.根据方案17所述的变速器流体泵控制方法,还包括当所述压力的减小大于预定压力时,将用于所述电动变速器流体泵的所述速度设置为等于当前速度。 [0043] 18. The transmission fluid pump control method according to embodiment 17, further comprising when the reduced pressure is greater than a predetermined pressure, for the transmission speed of the electric fluid pump is set equal to the current speed.

[0044] 19.根据方案11所述的变速器流体泵控制方法,还包括基于变速器流体的温度和所述变速器流体的压力来确定所述预定最大可允许泄漏量。 [0044] The transmission fluid pump 19. The control method of embodiment 11, further comprising a pressure based on a temperature of the transmission fluid and transmission fluid to determine said predetermined maximum allowable leakage.

[0045] 20.根据方案11所述的变速器流体泵控制方法,还包括基于所述电动变速器流体泵的目标输出压力来确定所述电动变速器流体泵的所述目标输出流率。 [0045] The transmission fluid pump 20. The control method of embodiment 11, further comprising determining the target output flow rate of the electric transmission fluid pump based on the target output pressure of the electric transmission fluid pump.

[0046] 通过详细描述、权利要求和附图,本公开的其它应用领域将变得显而易见。 [0046] detailed description, claims and drawings, other applications of the present disclosure will become apparent. 详细描述和具体示例仅意图用于举例说明,而并非意图限制本公开的范围。 Detailed description and specific examples are intended for illustration only and are not intended to limit the scope of the present disclosure.

附图说明 BRIEF DESCRIPTION

[0047] 通过详细描述和附图将会更全面地理解本公开,附图中: [0047] accompanying drawings and the detailed description will be understood more fully the present disclosure, the drawings:

图1是根据本公开的示例性车辆系统的功能框图; FIG. 1 is a block diagram of an exemplary vehicle system function of the present disclosure;

图2是根据本公开的示例性变速器系统的功能框图; FIG 2 is a block diagram of the transmission function of the present exemplary system disclosed herein;

图3是根据本公开的示例性泵控制系统的功能框图; FIG 3 is a block diagram of the pump control functions of the exemplary system disclosed herein;

图4是在变速器流体泵测试期间作为时间的函数的变速器流体泵速度和变速器流体压力的示例性图表; FIG 4 is a transmission fluid pump during the test as the transmission speed and transmission fluid pump function of time, fluid pressure exemplary graph;

图5是描绘根据本公开的测试变速器流体泵以确定变速器流体泵的效率的示例性方法的流程图;以及 5 is a flowchart of an exemplary method to determine the efficiency of the transmission fluid pump in accordance with the present disclosure is depicted test transmission fluid pump; and

图6是根据本公开的控制变速器流体泵的示例性方法的流程图。 6 is a flowchart according to the present disclosure an exemplary method of controlling a transmission fluid pump.

[0048] 在附图中,附图标记可再次使用以标示类似的和/或相同的元件。 [0048] In the drawings, reference numerals may be used to identify similar and / or identical elements again.

具体实施方式 detailed description

[0049] 发动机为车辆生成扭矩。 [0049] the vehicle engine to generate torque. 变速器将扭矩传递到车辆的一个或多个车轮。 A transmission torque to the vehicle wheels or more. 变速器流体泵将变速器流体从变速器流体源(例如,贮槽)泵送至变速器的各个部件,例如离合器。 Transmission fluid pump transmission fluid transmission from a fluid source (e.g., tank) is pumped to the various components of the transmission, such as clutch. 变速器流体泵为电动泵。 Transmission fluid pump is an electric pump. 控制模块基于目标流率来控制变速器流体泵的速度。 The control module controls the flow rate based on the target speed of the transmission fluid pump.

[0050] 所有变速器流体泵都泄漏,例如在旋转部件和内壁之间。 [0050] are all leaking transmission fluid pump, for example between the rotating member and the inner wall. 车辆制造商可能需要所有变速器流体泵泄漏(内部)小于或等于预定最大可允许量。 All vehicle manufacturers may require transmission fluid leakage pump (inside) is less than or equal to a predetermined maximum allowable amount. 控制模块可基于预定最大可允许量控制变速器流体泵的速度,以确保在变速器流体泵的泄漏等于预定最大可允许量时变速器流体泵实现目标流率。 The control module may be based on a predetermined maximum allowable amount of transmission fluid pump to control the speed, to ensure that the leakage of the transmission fluid pump is equal to a predetermined transmission fluid pump to achieve the maximum allowable amount of the target flow rate.

[0051] 然而,如果变速器流体泵的泄漏小于预定最大可允许量,则变速器流体泵可被控制到比所需更快的速度。 [0051] However, if the leakage of the transmission fluid pump is less than a predetermined maximum allowable amount, the transmission fluid pump can be controlled to a desired ratio faster. 本公开的控制模块因此确定相对于具有等于预定最大可允许量的泄漏的变速器流体泵的变速器流体泵的效率。 Thus the control module of the present disclosure determines the efficiency with respect to the transmission fluid pump having equal predetermined maximum allowable amount of leakage of transmission fluid pump. 控制模块进一步基于变速器流体泵的效率来控制变速器流体泵的速度。 The control module further controls the speed of the fluid pump based on the transmission efficiency of the transmission fluid pump. 基于效率控制变速器流体泵的速度可以使变速器流体泵能够以较低速度操作并且因此消耗较少能量。 Transmission fluid pump can be made based on the speed control of the transmission efficiency of the fluid pump capable of operating at a lower speed and thus consume less energy.

[0052] 现在参看图1,提供了示例性车辆系统的功能框图。 [0052] Referring now to FIG. 1, a functional block diagram of an exemplary vehicle system. 内燃发动机12经由变矩器16驱动变速器14。 The internal combustion engine 12 drives the transmission 14 via a torque converter 16. 发动机12可包括例如火花点火发动机、压缩点火发动机、或另一合适类型的发动机。 Engine 12 may include an engine spark ignition engine, compression ignition engine, or another suitable type. 车辆也可包括一个或多个电动马达和/或马达发电机单元(MGU),例如MGU 18。 Vehicle may also include one or more electric motors and / or motor generator unit (MGU), e.g. MGU 18.

[0053] 发动机12将扭矩经由诸如曲轴的发动机输出轴20输出到变矩器16。 [0053] The engine 12 via the torque output of the engine output shaft such as a crankshaft 20 to the torque converter 16. 变矩器16将扭矩经由变速器输入轴22供应至变速器14。 The torque converter 16 is supplied to the transmission 14 via a transmission input shaft 22. (多个)电动马达和/或(多个)MGU也可将扭矩输出到变速器输入轴22以补充或代替发动机扭矩输出。 (S) an electric motor and / or (s) may be the MGU torque output to the transmission input shaft 22 in addition to or instead of the engine torque output. MGU可在一些情况下将机械能转化成电能,例如,以对一个或多个电池充电和/或以供应用于车辆的电子部件的功率。 In some cases MGU can convert mechanical energy into electrical energy, for example, to charge one or more batteries and / or to supply power for the electronic components of the vehicle.

[0054] 变速器14包括一个或多个齿轮组(未示出),以用于在变速器输入轴22和变速器输出轴24之间传递。 [0054] The transmission 14 includes one or a plurality of gear sets (not shown), for transfer between the transmission input shaft 22 and the transmission output shaft 24. 齿轮齿数比可表不在变速器输入轴22的旋转速度和变速器输出轴24的旋转速度之间的比率。 The ratio between the input gear 22 and the rotational speed of the rotational speed of the transmission output shaft 24 of the axial ratio can not watch the transmission. 变速器输出轴24驱动传动系26,并且传动系26将扭矩传递到车辆的车轮(未示出)。 Transmission output shaft 24 drive train 26, drive train 26 and transfers torque to the wheels of the vehicle (not shown). 档位选择器28使用户能够选择变速器14的操作模式。 Gear selector 28 enables the user to select the operating mode of the transmission 14. 该模式可包括例如驻车模式、倒档模式、空档模式、或一个或多个正向驱动模式。 The pattern may comprise, for example, a parking mode, a reverse mode, a neutral mode, or one or more forward driving mode.

[0055] 发动机控制模块(ECM) 60控制发动机12的操作。 [0055] An engine control module (ECM) 60 controls operation of engine 12. 在各种实施中,ECM 60或另一个控制模块(未不出)可控制一个或多个电动马达和/或MGU的操作。 In various embodiments, ECM 60 or another control module (not not) may control one or more electric motors and / or operation of the MGU. 变速器控制模块(TCM) 70控制变速器14的操作。 A transmission control module (TCM) 70 controls operation of the transmission 14. 虽然TCM 70示出为在变速器14内实施,但TCM 70在各种实施中可以在变速器14外部实施。 While TCM 70 as shown in the embodiment of the transmission 14, the TCM 70 may be implemented outside of the transmission 14 in the various embodiments. ECM 60和TCM 70可经由连接72共享数据。 ECM 60 and TCM 70 may be connected via a shared data 72.

[0056] 现在参看图2,提供了变速器系统的示例性实施的功能框图。 [0056] Referring now to FIG. 2, a functional block diagram of an exemplary embodiment of the transmission system. 变速器14包括多个摩擦联接元件,例如分别为第一离合器104、第二离合器106、第三离合器108、第四离合器110和第五离合器112。 The transmission 14 includes a plurality of friction coupling elements, respectively, for example a first clutch 104 and second clutch 106, the third clutch 108, fourth 110 and fifth clutch 112 clutch. 变速器14可包括更多或更少数量的离合器和/或摩擦联接元件。 The transmission 14 may include a greater or lesser number of clutches and / or friction coupling element.

[0057] 摩擦联接元件控制在给定时间齿轮组中的哪一个接合在变速器14内。 [0057] The controlled frictional engagement element at a given time in which a gear set in the transmission 14 engages. 当摩擦联接元件和齿轮组中的一个或多个的不同组合接合时,可以建立不同的齿轮齿数比。 When a frictional coupling element and a gear set or a combination of a plurality of different engagement may establish different gear ratios.

[0058] 变速器流体120被导向至摩擦联接元件和从摩擦联接元件导向,以控制摩擦联接元件的接合和分离。 [0058] The transmission fluid 120 is directed to a friction coupling element and the coupling element from the friction guide to control the friction element engagement and disengagement of the coupling. 电动变速器流体泵116从贮槽124或另一个合适的变速器流体源汲取变速器流体。 Electric transmission fluid pump 116 draws fluid from the transmission 124 or another suitable source of transmission fluid sump. 变速器流体泵116将变速器流体加压并且将加压的变速器流体提供至阀体132。 Transmission fluid pump 116 and the pressurized transmission fluid pressurized transmission fluid to a valve body 132. 变速器流体泵116也可将加压的变速器流体提供至变矩器16和/或一个或多个其它部件。 Transmission fluid pump 116 may provide pressurized transmission fluid to a torque converter 16 and / or one or more other components.

[0059] 变速器流体泵116也可输出变速器流体以用于一个或多个变速器部件的润滑并且用于冷却一个或多个变速器部件,例如一个或多个电动马达和/或MGU。 [0059] The transmission fluid pump 116 may be output to the transmission fluid used for lubrication of a plurality of transmission components or for cooling and one or more transmission components, such as one or more electric motors and / or MGU. 变速器14可包括变速器流体冷却器(未示出),其将热量从流过变速器流体冷却器的变速器流体传递到诸如空气或冷却剂的冷却介质。 The transmission 14 may include a transmission fluid cooler (not shown), through which the heat transmission fluid stream from the transmission fluid cooler to the cooling medium such as air or coolant.

[0060] 一些类型的变速器流体泵例如由发动机12机械地驱动。 [0060] Some types of transmissions, for example, a fluid pump 12 is mechanically driven by the engine. 然而,变速器流体泵116是电动变速器流体泵。 However, transmission fluid pump 116 is an electric transmission fluid pump. 泵控制模块135(还可参见图3)将来自诸如电池134的一个或多个电池的电功率施加到变速器流体泵116以驱动变速器流体泵116。 Pump control module 135 (see also FIG. 3) such as a battery 134 from the battery or the electric power applied to the plurality of transmission fluid pump 116 to drive transmission fluid pump 116. 变速器流体泵116基于施加到变速器流体泵116的电功率而输出变速器流体。 Transmission fluid pump 116 based on the output of the transmission fluid is applied to the electric power transmission fluid pump 116. 下面结合图3进一步讨论变速器流体泵116的控制。 3 discussed further below transmission fluid pump control 116 in conjunction with FIG.

[0061] 阀体132包括诸如离合器控制螺线管138的一个或多个控制螺线管,其控制变速器流体从阀体132到摩擦联接元件中的一个和从摩擦联接元件中的一个到阀体132的流动。 [0061] The clutch control valve 132 comprises one or more such control solenoid of the solenoid 138, which controls the transmission of fluid from the valve body 132 and a frictional engagement element to a frictional engagement element from the valve body flow 132. 变速器流体经由通道(例如,形成于变速器14的外壳136中的通道)在阀体132和摩擦联接元件中的一个之间流动。 Transmission fluid via a channel (e.g., the transmission channel is formed in the housing 13 614) flows in a valve body 132 and the friction between the coupling element. 仅仅是举例,离合器控制螺线管138可控制变速器流体120经由通道139在阀体132和第一离合器104之间的流动。 For example only, the clutch control solenoid 138 may control the transmission of fluid flow through passage 120 between the valve body 139 and the first clutch 104 132. 可以为摩擦联接元件中的每一个提供一个或多个离合器控制螺线管和通道。 The solenoid may be controlled for each channel and provide a frictional engagement element or a plurality of clutches.

[0062] 诸如线性压力调节器螺线管140的一个或多个线性压力调节器螺线管控制变速器流体从阀体132(以相对较高的压力)返回到贮槽124(以相对较低的压力)的流动。 [0062] such as a linear solenoid pressure regulator 140 to one or more of the linear solenoid pressure regulator valve 132 controls the transmission of fluid from the (relatively high pressure) to return to the sump 124 (at a relatively low pressure) flow. 通过控制变速器流体返回到贮槽124的流动,线性压力调节器螺线管也控制提供至控制螺线管和摩擦联接元件的变速器流体的压力。 The flow returns to the sump 124 by controlling the transmission fluid pressure linear solenoid regulator also controls the transmission fluid to provide a control pressure to the solenoid and the frictional engagement element. 仅仅是举例,线性压力调节器螺线管140可控制提供至离合器控制螺线管138和第一离合器104的变速器流体120的压力。 For example only, a linear solenoid pressure regulator 140 may be provided to control the pressure of the transmission fluid clutch control solenoids 138 and 120 of the first clutch 104. 可以为离合器控制螺线管中的每一个提供一个或多个线性压力调节器螺线管。 Solenoid may be adjusted to provide a clutch control each of a plurality of solenoids or linear pressure.

[0063] 变速器14可包括一个或多个压力传感器。 [0063] The transmission 14 may include one or more pressure sensors. 仅仅是举例,管线压力传感器160可测量提供至离合器控制螺线管138的变速器流体的压力。 For example only, the line pressure sensor 160 may measure the pressure supplied to the clutch control solenoid 138 of the transmission fluid. TCM 70可控制线性压力调节器螺线管140以朝目标管线压力调整提供至离合器控制螺线管138的变速器流体的压力。 TCM 70 can control the linear solenoid pressure regulator 140 to adjust the line pressure towards the target to provide a clutch control solenoid 138 of the pressure transmission fluid. 提供至离合器控制螺线管138的变速器流体的压力将被称为管线压力。 To provide a fluid transmission clutch control pressure solenoid 138 it will be referred to as line pressure. 可以为离合器控制螺线管中的每一个提供管线压力传感器。 Each line may be provided a pressure sensor for the clutch control solenoids. 变速器14包括一个或多个其它传感器,例如变速器流体温度传感器162。 The transmission 14 includes one or more other sensors, such as the transmission fluid temperature sensor 162.

[0064] 现在参看图3,提供了示例性泵控制系统的功能框图。 [0064] Referring now to FIG. 3, a functional block diagram of an exemplary pump control system. 泵控制模块135可在TCM 70内或在另一个合适的模块内单独地实施。 The pump control module 135 may be implemented separately or in another appropriate module within the TCM 70. 目标流率模块204确定由变速器流体泵116输出的变速器流体的目标流率208。 Target flow rate module 204 determines a target flow rate of the fluid output of the transmission by the transmission fluid pump 116,208. 目标流率模块204可以例如基于目标压力212、一个或多个润滑请求216、一个或多个冷却请求220、和/或一个或多个其它参数来确定目标流率208。 Module 204 may target flow rate 212, one or more lubricating request 216, one or more cooling request 220, and / or one or more other parameters to determine a target flow rate based on the target pressure, for example 208.

[0065]目标压力212可对应于从变速器流体泵116输出的变速器流体的目标压力。 [0065] 212 may be a target pressure corresponding to the target output pressure of the transmission fluid from the transmission fluid pump 116. 可以生成润滑请求以请求变速器流体泵116输出变速器流体以用于一个或多个部件的润滑。 Lubrication Lubrication may generate a request for requesting the transmission output of the transmission fluid pump 116 for one or more fluid components. 可以生成冷却请求以请求变速器流体泵116输出变速器流体以用于一个或多个部件的冷却。 Cooling cooling may generate a request for requesting the transmission output of the transmission fluid pump 116 for one or more fluid components.

[0066] 目标速度模块224基于目标流率208来确定变速器流体泵116的目标速度228。 [0066] The target speed based on the target flow rate module 224 determines the transmission fluid pump 208 to the target speed 116 228. 然而,包括变速器流体泵116在内的所有变速器流体泵都在一定程度上(在内部)泄漏。 However, all of the transmission fluid pump includes a transmission including a fluid pump 116 are to some extent (internal) leak. 例如,变速器流体可以由于旋转部件和内壁之间的间隙而在变速器流体泵116的旋转部件和变速器流体泵116的内壁之间泄漏。 For example, since the transmission fluid may be a gap between the rotating member and the inner wall and the inner wall of the pump between the fluid pump and the transmission rotation member 116 in the leakage of transmission fluid 116. 然而,应当指出,变速器流体泵116的泄漏仍然包含在变速器内。 However, it should be noted that the leak transmission fluid pump 116 is still contained in the transmission.

[0067] 泄漏量可从变速器流体泵到变速器流体泵变化,但车辆制造商可能要求所有变速器流体泵泄漏小于或等于预定最大可允许泄漏量。 [0067] The amount of leakage from transmission fluid pump to pump transmission fluid changes, the vehicle manufacturer may require that all transmission fluid pump leakage than or equal to the predetermined maximum allowable leakage. 仅仅是举例,车辆制造商可能要求泄漏量小于大约4升/分钟(LPM)、大约5LPM、或另一个合适的最大可允许泄漏量。 For example only, the vehicle manufacturer may require a leakage of less than about 4 liters / minute (the LPM), about 5LPM, or other suitable maximum allowable leakage.

[0068] 预定最大可允许泄漏量可通过管线压力和/或变速器流体的温度而改变。 [0068] predefined maximum allowable leakage rate can be varied by line pressure and / or temperature of the transmission fluid. 与管线压力和/或变速器流体温度关联的预定最大可允许量的值的映射可存储在诸如存储器236的存储器中。 The amount of allowable mappings associated with line pressure and / or temperature of the transmission fluid of a predetermined maximum value may be stored in memory such as the memory 236.

[0069]目标速度模块224确定预定最大泄漏232,并且进一步基于预定最大泄漏232确定目标速度228。 [0069] module 224 determines a predetermined target speed maximum leakage 232, and further based on a predetermined maximum leak 232 determines the target speed 228. 目标速度模块224可从基于管线压力和/或变速器流体温度的映射来确定预定最大泄漏232,或者预定最大泄漏232可以是恒定值。 Target rate module 224 may determine from the map based on the line pressure and / or temperature of a predetermined maximum transmission fluid leak 232, or a predetermined maximum leakage 232 may be a constant value.

[0070] 基于预定最大泄漏232确定目标速度228确保变速器流体泵116实现目标流率208,即使变速器流体泵116的实际泄漏量等于预定最大泄漏232。 [0070] 232 determines a target speed based on a predetermined maximum leak fluid pump 228 to ensure that the transmission 116 to achieve target flow rate 208, even if the actual amount of leakage of transmission fluid pump 116 is equal to the predetermined maximum leakage 232. 然而,如果变速器流体泵116的实际泄漏量小于预定最大泄漏232,则变速器流体泵116可以在大于实现目标流率208所需的速度下操作。 However, if the actual leakage transmission fluid pump 116 is less than a predetermined maximum leak 232, the transmission fluid pump 116 may be operated at a speed greater than that required to achieve target flow rate 208.

[0071]目标速度模块224因此进一步基于变速器流体泵116的效率240来确定目标速度228。 [0071] Thus the target speed module 224 further efficiency 116 228 240 determines a target speed based on the transmission fluid pump. 目标速度模块224可使用将变速器流体泵116的目标流率208、预定最大泄漏232和效率240与目标速度228关联的函数和映射之一来确定目标速度228。 Target speed module 224 may use the transmission fluid pump target flow rate 116 208, one mapping function 228 and 240 associated with the target speed and efficiency predetermined maximum leak 232 228 to determine the target speed. 例如,目标速度模块224可使用如下公式确定目标速度228: For example, the target speed module 224 may use the following equation to determine the target speed 228:

Target Speed = Target Speed ​​=

σ r Displacement σ r Displacement

其中,Target Speed为目标速度228,Target Flow为目标流率208,Max为预定最大泄漏232,Eff iciency为效率240,效率240是在0.0 (对应于无泄漏)和1.0 (指示等于预定最大泄漏232的泄漏)之间的增益值,并且Displacement为变速器流体泵116的排量。 Wherein, Target Speed ​​target speed, Target Flow target flow rate 208 228, Max is a predetermined maximum leak 232, Eff iciency of efficiency 240, efficiency 240 is 0.0 (corresponding to a leak-free) and 1.0 (indicating equal to a predetermined maximum leakage 232 leakage between the gain values), and displacement pump 116 for the displacement of the transmission fluid. 变速器流体泵116的排量是预定值,并且可以存储在存储器236中。 Transmission fluid displacement pump 116 is a predetermined value, and may be stored in the memory 236. 在各种实施中,目标速度模块224可备选地使用如下公式确定目标速度228: In various embodiments, the target speed module 224 may alternatively be determined using the following formula target speed 228:

— Target Flow+Max+ Efficiency - Target Flow + Max + Efficiency

I arget Speed =-» I arget Speed ​​= - »

Displacement Displacement

其中,Target Speed为目标速度228, Target Flow为目标流率208, Max为预定最大泄漏232,Eff iciency为效率240,效率240是在0.0 (指示等于预定最大泄漏232的泄漏)和预定最大泄漏的负值(指示无泄漏)之间的偏移值,并且Displacement为变速器流体泵116的排量。 Wherein, Target Speed ​​target speed 228, Target Flow target flow rate 208, Max is a predetermined maximum leak 232, Eff iciency of efficiency 240, efficiency 240 is 0.0 (indicating equal to a predetermined leak maximum leakage 232) and a predetermined maximum leakage an offset value between a negative value (indicating no leak), and displacement pump 116 for the displacement of the transmission fluid.

[0072]目标速度模块224可进一步基于诸如用以提供冷却的一个或多个流率和阀体泄漏(例如,速率)的一个或多个其它参数来确定目标速度228。 [0072] The target speed module 224 may further be based on one or more other parameters such as cooling or to provide a plurality of flow rate and valve leak (e.g., rate) 228 determines the target speed. 例如,在除以排量之前,目标速度模块224可将用以提供冷却的流率和阀体泄漏与以上公式的分子求和。 For example, prior to displacement divided by the target speed module 224 may be used to provide a cooling leak flow rate and the valve body with the above formula molecules summed. 阀体泄漏可表示阀体132的泄漏速率。 Leak valve 132 may represent the leakage rate of the valve body. 目标速度模块224可以例如基于由变速器流体泵116输出的变速器流体的变速器流体温度和压力来确定阀体泄漏和用以提供冷却的流率。 Module 224 may, for example, the target speed based on the transmission fluid temperature and pressure of the fluid output of the transmission by the transmission fluid pump 116 and the leak valve to determine the flow rate to provide cooling.

[0073] 速度控制模块242基于目标速度228将功率施加到变速器流体泵116。 [0073] The speed control module 242 based on the target speed 228 is applied to a power transmission fluid pump 116. 例如,速度控制模块242可基于目标速度228来确定将施加到变速器流体泵116的脉冲宽度调制(PWM)占空比,并且以该占空比将功率施加到变速器流体泵116。 For example, speed control module 242 based on the target speed 228 may be determined to be applied to the transmission fluid pump 116 is a pulse width modulation (PWM) duty cycle, and in that the duty cycle applied to the power transmission fluid pump 116.

[0074] 效率模块244确定变速器流体泵116的效率240。 [0074] module 244 determines the efficiency of the transmission efficiency of the fluid pump 116 to 240. 效率模块244基于用于具有等于预定最大泄漏232的泄漏的变速器流体泵的预定数据和在向公众提供车辆之前为变速器流体泵116获得的数据来确定变速器流体泵116的效率240。 Efficiency module 244 of the leakage predetermined maximum predetermined data transmission fluid pump 232 and to provide data prior to the transmission of the vehicle to the public based on the obtained fluid pump 116 is used to determine the efficiency of having equal transmission fluid pump 116 to 240.

[0075] 更具体而言,效率模块244基于在对于具有预定最大泄漏232的变速器流体泵来说发生变速器流体压力减小时的泵速度来确定变速器流体泵116的效率240。 [0075] More specifically, the efficiency of the pump module 244 based on the speed of the transmission fluid pressure reduction occurs to the transmission fluid pump 232 having a predetermined maximum leakage is determined when the efficiency of the transmission fluid pump 116 to 240. 该泵速度为预定速度248,并且可以存储在存储器236中。 The pump 248 speed is a predetermined speed, and may be stored in the memory 236.

[0076] 效率模块244进一步基于在使用变速器流体泵116发生变速器流体压力减小时的变速器流体泵116的速度来确定变速器流体泵116的效率240。 [0076] The module 244 further based on the transmission efficiency of the fluid pump in use occurs transmission fluid pump 116 in fluid pressure reduction speed transmission 116 to determine the efficiency of the fluid pump 116 of the transmission 240. 在向公众提供车辆之前进行的测试期间,变速器流体压力被监测,以确定变速器流体泵116的泵速度。 During the tests carried out prior to providing the public vehicle, the transmission fluid pressure is monitored to determine the pump speed of the transmission fluid pump 116. 该泵速度将被称为测试泵速度252。 The pump speed will be referred to as test speed pump 252.

[0077] 在其中效率240是在0.0和1.0之间的增益值的实施中,效率模块244可将效率240设置为等于测试泵速度252除以预定速度248。 [0077] In the embodiment where the gain in efficiency is 240 values ​​between 0.0 and 1.0, the efficiency of the module 244 may be set equal to 240 to test the efficiency of the pump speed by a predetermined speed 252 248. 在其它实施中,效率模块244可使用将测试泵速度252和预定速度248与效率240关联的函数和映射之一来确定效率240。 In other embodiments, the efficiency of the module 244 may be used to test one of the associated pump speed 240 252 and 248 with a predetermined speed and efficiency of the mapping function 240 to determine the efficiency. 在各种实施中,效率模块244可基于诸如变速器流体的压力和/或温度的一个或多个参数而选择性地调整预定速度248。 In various embodiments, the efficiency of the transmission module 244 may be a fluid, such as pressure and / or one or more parameters of temperature and 248 selectively adjust the predetermined speed.

[0078] 速度确定模块256在向公众提供车辆之前的测试期间确定测试泵速度252。 [0078] The speed determination module 256 determines the speed of the pump test 252 during testing prior to providing vehicles to the public. 模式信号258可指示测试正在进行。 Mode signal 258 may indicate a test in progress. 该测试包括减小泵速度260和监测管线压力264。 The test includes reducing the speed of the pump 260 and the pressure monitoring line 264. 管线压力264可使用管线压力传感器160测量,或者当车辆在向公众提供车辆之前被测试时使用在测试设施处的传感器测量。 The line pressure using line pressure sensor 264 may measure 160, or when the vehicle is used in a test facility at the test vehicle prior to providing the public sensors. 虽然将就使用管线压力264而言描述测试,但可以监测另一个合适的变速器流体压力,例如变速器冷却器出口压力。 Although the use of line pressure will be described in terms of test 264, but may be another suitable monitor the transmission fluid pressure, such as the transmission cooler outlet pressure. 泵速度260可使用速度传感器测量或基于一个或多个参数确定。 Pump speed using a speed sensor 260 may be measured or determined based on one or more parameters.

[0079] 当管线压力264中的减小发生时,速度确定模块256读取泵速度260并将读取的泵速度存储为测试泵速度252。 [0079] When decreasing the pressure in the line 264 occurs, the reading speed determination module 256 and the pump speed of the pump speed of the memory 260 is read 252 test pump speed. 减小可以例如在管线压力264从初始值减小至少预定量(例如,大约50千帕(kPa)或另一合适量)时发生。 Reduction can occur when the pressure in the line 264 is reduced at least by a predetermined amount (e.g., about 50 kilopascals (kPa) or another suitable amount) from an initial value, for example.

[0080] 现在参看图4,提供了在测试期间作为时间的函数的泵速度304和管线压力308的示例性图表。 [0080] Referring now to FIG. 4, during the test period as a function of time of the speed of the pump pressure line 304 308 and an exemplary graph. 如上所述,速度控制模块242在测试期间减小泵速度304。 As described above, the speed control module 242 decreases the speed of the pump 304 during testing. 例如,速度控制模块242可以按如图4所示的预定速率减小泵速度304。 For example, speed control module 242 may be a predetermined rate as shown in FIG. 4 304 pump speed is reduced.

[0081] 在对于具有等于预定最大泄漏232的泄漏的变速器流体泵来说发生至少预定量的管线压力308中的减小时的泵速度304被称为预定速度248。 [0081] In the pump speed is reduced when at least a predetermined amount of pressure in line 308 for generating a fluid pump having a transmission equal to a predetermined maximum is 232 of the leakage 304 248 is referred to a predetermined speed. 预定速度248在图4中由312指示。 248 indicates a predetermined speed by a 312 in FIG. 4.

[0082] 在使用变速器流体泵116发生至少预定量的管线压力308中的减小时的泵速度304被称为测试泵速度252。 [0082] The pump speed is reduced when a predetermined amount of at least 308 using the line pressure of the transmission fluid pump 116 occurs 304 252 is referred to as the test pump speed. 速度确定模块256监测管线压力并且基于当管线压力减小至少预定量时的泵速度260设置测试泵速度252或将测试泵速度252设置为等于该泵速度260。 Speed ​​determination module 256 monitors the pressure line 260 and the pump speed based on the test set line pressure when the pump speed is reduced when a predetermined amount of at least 252 or 252 test pump speed to the pump speed is set equal to 260. 测试泵速度252在图4中由316示出。 Test speed pump 252 is illustrated by 316 in FIG. 4.

[0083] 在预定速度248和测试泵速度252之间的关系对应于变速器流体泵116相对于预定最大泄漏232泄漏了多少。 [0083] 232 for a predetermined maximum leakage leaked in the number of 116-phase relationship between the 248 and 252 at a predetermined speed corresponding to the transmission speed of the pump test fluid pump. 效率模块244基于预定速度248和测试泵速度252来确定变速器流体泵116的效率240,并且目标速度模块224如上所述基于效率240来确定目标速度228。 Efficiency module 244 determines 252 the transmission fluid pump 248 based on a predetermined speed and efficiency of the pump speed test 116 240, and 224 as described above based on the target speed module 240 determines a target speed efficiency 228.

[0084] 现在参看图5,提供了描绘确定测试泵速度252的示例性方法的流程图。 [0084] Referring now to FIG. 5, a flowchart depicting an exemplary method of determining the speed of the pump 252 test. 控制可以始于404,其中速度确定模块256确定管线压力264的初始值。 Control may begin 404, wherein the speed determination module 256 determines an initial value of a line pressure of 264. 管线压力264的初始值可以在泵速度260中的减小开始之前、开始之后或开始时确定。 The initial value of the line pressure 264 may begin before, or after the start of the decrease is determined at the beginning of the speed of the pump 260. 在各种实施中,平均值或基于管线压力264的一个或多个样本确定的另一个合适的统计参数可用作初始值。 In various embodiments, the average value of another suitable statistical parameters or based on a line pressure of 264 or more samples may be used to determine the initial value.

[0085] 在408中,速度确定模块256读取管线压力264并且确定管线压力264是否已从初始值减小至少预定量。 [0085] At 408, the reading speed determination module 256 determines the line pressure line 264 and 264 from the initial value of the pressure is reduced by at least a predetermined amount. 如果是,则在412中速度确定模块256将泵速度260存储为测试泵速度252,并且控制可以结束。 If so, then in 412 the speed determination module 260 stores 256 the pump speed to pump speed test 252, and control may end. 如果否,则控制可以保持在408。 If not, then control may be maintained at 408. 仅仅是举例,预定量可以是大约50kPa或另一合适压力。 For example only, the predetermined amount may be about 50kPa or another suitable pressure. 如上所述,在预定速度248和测试泵速度252之间的关系对应于变速器流体泵116相对于预定最大泄漏232泄漏了多少。 As described above, the phase relationship between 116 252 and 248 a predetermined speed corresponding to the transmission speed of the pump test fluid pump 232 for a predetermined maximum leak leak much.

[0086] 现在参看图6,提供了描绘确定目标速度228和控制变速器流体泵116的示例性方法的流程图。 [0086] Referring now to FIG. 6, a flow chart depicting determining a target speed and the control of the transmission fluid pump 228 of an exemplary method 116. 控制可以始于504,其中目标流率模块204确定目标流率208。 Control may begin at 504, where the target flow rate module 204 determines a target flow rate 208. 在508中,效率模块244确定变速器流体泵116的效率240。 In 508, the transmission efficiency of the fluid pump module 244 determines the efficiency of 240,116. 效率模块244基于预定速度248和测试泵速度252来确定变速器流体泵116的效率240。 Efficiency module 244 determines 252 the transmission efficiency of the fluid pump 116 to 240 and 248 based on a predetermined test speed pump speed. 例如,效率模块244可以将效率240设置为等于测试泵速度252除以预定速度248。 For example, the efficiency of the module 244 may test the efficiency of the pump 240 is set equal to a predetermined speed divided by the speed of 252 248.

[0087] 在512中,目标速度模块224确定目标速度228。 [0087] At 512, the module 224 determines the target speed target speed 228. 目标速度模块224基于目标流率208、预定最大泄漏232和效率240来确定目标速度228。 Target speed module 224 based on the target flow rate 208, 232 and a predetermined maximum leakage efficiency 228 240 determine the target speed. 目标速度模块224可使用将目标流率208、预定最大泄漏232和变速器流体泵116的效率240与目标速度228关联的函数和映射之一来确定目标速度228。 Target speed module 224 may be used to target flow rate 208, the mapping function 240 and an associated one of the predetermined maximum leakage efficiency of the fluid pump 232 and the transmission 116 and the target speed to determine a target speed 228 228. 例如,目标速度模块224可使用如下公式确定目标速度228: For example, the target speed module 224 may use the following equation to determine the target speed 228:

Target Speed = 墜■,整 Target Speed ​​= fall ■, whole

G r Displacement G r Displacement

其中,Target Speed为目标速度228,Target Flow为目标流率208,Max为预定最大泄漏232,Eff iciency为效率240,效率240是在0.0 (对应于无泄漏)和1.0 (指示等于预定最大泄漏232的泄漏)之间的增益值,并且Displacement为变速器流体泵116的排量。 Wherein, Target Speed ​​target speed, Target Flow target flow rate 208 228, Max is a predetermined maximum leak 232, Eff iciency of efficiency 240, efficiency 240 is 0.0 (corresponding to a leak-free) and 1.0 (indicating equal to a predetermined maximum leakage 232 leakage between the gain values), and displacement pump 116 for the displacement of the transmission fluid. 变速器流体泵116的排量是预定值,并且可以存储在存储器236中。 Transmission fluid displacement pump 116 is a predetermined value, and may be stored in the memory 236. 在各种实施中,目标速度模块224可备选地使用如下公式确定目标速度228: In various embodiments, the target speed module 224 may alternatively be determined using the following formula target speed 228:

_ Target Flow+Max+ Efficiency _ Target Flow + Max + Efficiency

I arget Speed =-----, I arget Speed ​​= -----,

Displacement Displacement

其中,Target Speed为目标速度228, Target Flow为目标流率208, Max为预定最大泄漏232,Eff iciency为效率240,效率240是在0.0 (指示等于预定最大泄漏232的泄漏)和预定最大泄漏的负值(指示无泄漏)之间的偏移值,并且Displacement为变速器流体泵116的排量。 Wherein, Target Speed ​​target speed 228, Target Flow target flow rate 208, Max is a predetermined maximum leak 232, Eff iciency of efficiency 240, efficiency 240 is 0.0 (indicating equal to a predetermined leak maximum leakage 232) and a predetermined maximum leakage an offset value between a negative value (indicating no leak), and displacement pump 116 for the displacement of the transmission fluid. 目标速度模块224可进一步基于诸如用以提供冷却的(多个)流率和/或阀体泄漏的一个或多个其它参数来确定目标速度228。 Target speed module 224 may further be determined based on the target speed 228 (s) flow rate and / or one or more other parameters such as to provide cooling of the body leak. 在516中,速度控制模块242基于目标速度228而控制向变速器流体泵116的功率施加。 In 516, the speed control module 242 based on the target speed 228 is applied to control power transmission fluid pump 116.

[0088] 上面的描述本质上仅是示例性的并且决不是要限制本公开、其应用或用途。 [0088] The foregoing description is merely exemplary in nature and is in no way intended to limit the disclosure, its application, or uses. 本公开的广义教导可以以各种形式实施。 The broad teachings of the present disclosure may be embodied in various forms. 因此,虽然本公开包括具体示例,但本公开的真正范围不应局限于此,因为在研究附图、说明书和随附权利要求书的基础上其它修改将变得显而易见。 Therefore, while this disclosure includes particular examples, the true scope of the disclosure should not be so limited, because on the basis of study of the drawings, the specification and the appended claims other modifications will become apparent. 如本文所用,短语A、B和C中的至少一个应当被解释为是指使用非排他逻辑“或”的逻辑(A或B或C)。 As used herein, the phrase A, B and C at least one should be construed to mean the use of a non-exclusive logical "OR" logical (A or B or C). 应当理解,在不改变本公开的原理的情况下,可以以不同的顺序(或同时地)执行方法内的一个或多个步骤。 It should be understood that, without altering the principles of the present disclosure, the steps may be in a different order (or concurrently) performing one or more methods.

[0089] 在本申请中,包括以下讨论的定义,术语模块可替换为术语电路。 [0089] In the present application, including definitions discussed below, the term module may be replaced with the term circuit. 术语模块可表示、作为其一部分或包括:专用集成电路(ASIC);数字、模拟、或混合模拟/数字离散电路;数字、模拟、或混合模拟/数字集成电路;组合逻辑电路;现场可编程门阵列(FPGA);执行代码的处理器(共用的、专用的或成组的);存储由处理器执行的代码的存储器(共用的、专用的或成组的);提供所描述功能的其它合适的硬件部件;或上述中的一些或全部的组合,例如在片上系统中。 The term may represent a module, or a part thereof comprising: application specific integrated circuit (an ASIC); digital, analog or mixed analog / digital discrete circuits; digital, analog or mixed analog / digital integrated circuit; a combinational logic circuit; a field programmable gate array (the FPGA); code execution processor (shared, dedicated, or group); a memory storing a code executed by a processor (shared, dedicated, or group); other suitable to provide the described functions hardware components; all of or some combination of the foregoing or, for example, on-chip system.

[0090] 如在上面所使用的术语代码可包括软件、固件和/或微代码并可指程序、例程、函数、类和/或对象。 [0090] The term code, as used above, may include software, firmware and / or microcode, and may refer to programs, routines, functions, classes and / or objects. 术语共用的处理器涵盖执行来自多个模块的一些或全部代码的单个处理器。 The term encompasses single shared processor, the processor executes some or all of the code from a plurality of modules. 术语成组的处理器涵盖与附加的处理器结合执行来自一个或多个模块的一些或全部代码的处理器。 The processor and the additional processor term encompasses groups of binding a processor to perform some or all code from one or more modules. 术语共用的存储器涵盖存储来自多个模块的一些或全部代码的单个存储器。 The term shared memory encompasses a single memory stores some or all code from a plurality of modules. 术语成组的存储器涵盖与附加的存储器结合执行来自一个或多个模块的一些或全部代码的存储器。 Contemplated additional memory storage term group binding perform some memory from one or more or all of the code modules. 术语存储器可以是术语计算机可读介质的子集。 The term memory may be a subset of the term computer-readable media. 术语计算机可读介质不涵盖通过介质传播的暂时性电气和电磁信号,并且可因此被认为是有形的和非暂时的。 The term computer-readable medium does not encompass transitory electrical and electromagnetic signals propagating through a medium, and may therefore be considered tangible and non-transitory. 非暂时的有形计算机可读介质的非限制性示例包括非易失性存储器、易失性存储器、磁存储器和光存储器。 Non-transitory tangible computer-readable medium of non-limiting examples include nonvolatile memory, volatile memory, magnetic storage, and optical storage.

[0091] 本申请中描述的设备和方法可通过由一个或多个处理器执行的一个或多个计算机程序来部分或完全地实现。 [0091] The apparatus and methods described herein may be partially or completely implemented by one or more computer programs executed by one or more processors. 计算机程序包括存储在至少一个非暂时的有形计算机可读介质上的处理器可执行指令。 A computer program comprising processor-readable medium storing executable instructions, the at least one non-transitory tangible computer. 计算机程序还可包括和/或依赖于所存储的数据。 The computer program may further comprise and / or dependence on the stored data.

Claims (10)

1.一种车辆的变速器流体泵控制系统,包括: 目标速度模块,其基于电动变速器流体泵的目标输出流率、变速器流体泵的预定最大可允许泄漏量和所述电动变速器流体泵的效率来确定所述电动变速器流体泵的目标速度;以及速度控制模块,其基于所述目标速度将功率施加到所述电动变速器流体泵。 Transmission fluid pump control system for a vehicle, comprising: a target speed module, based on the target output flow rate of the electric pump transmission fluid, transmission fluid pump a predetermined maximum allowable amount of leakage and the efficiency of the electric transmission fluid pump to determining the target electric transmission fluid pump speed; and speed control module, which is based on the target speed is applied to the electric power transmission fluid pump.
2.根据权利要求1所述的变速器流体泵控制系统,其中,所述目标速度模块进一步基于所述电动变速器流体泵的排量来确定所述电动变速器流体泵的所述目标速度。 The transmission fluid pump control system according to claim 1, wherein the target speed module further determines the target transmission speed of the electric fluid pump based on the electric transmission fluid displacement of the pump.
3.根据权利要求2所述的变速器流体泵控制系统,其中,所述目标速度模块将所述目标速度设置为等于总和除以所述排量,并且基于所述目标输出流率加上所述预定最大可允许泄漏量和所述效率的乘积来设置所述总和。 The transmission fluid pump control system according to claim 2, wherein said target speed setting module sets the target speed is equal to the sum divided by said displacement, and based on the target output flow rate plus the predefined maximum allowable leakage and the efficiency of the product to set the sum.
4.根据权利要求2所述的变速器流体泵控制系统,其中,所述目标速度模块将所述目标速度设置为等于总和除以所述排量,并且基于所述目标输出流率加上所述预定最大可允许泄漏量加上所述效率来设置所述总和。 The transmission fluid pump control system according to claim 2, wherein said target speed setting module sets the target speed is equal to the sum divided by said displacement, and based on the target output flow rate plus the predefined maximum allowable leakage rate plus the sum of the efficiency is provided.
5.根据权利要求1所述的变速器流体泵控制系统,还包括效率模块,所述效率模块基于为所述电动变速器流体泵确定的速度和用于具有所述预定最大可允许泄漏量的变速器流体泵的预定速度来确定所述电动变速器流体泵的所述效率。 The transmission fluid pump control system according to claim 1, further comprising a module efficiency, the efficiency of the module is based on the electric transmission fluid pump having a determined speed, and the predetermined maximum allowable amount of leakage of transmission fluid a predetermined speed of the pump to determine the transmission efficiency of the electric fluid pump.
6.根据权利要求5所述的变速器流体泵控制系统,其中,所述效率模块将所述电动变速器流体泵的所述效率设置为等于为所述电动变速器流体泵确定的所述速度除以所述预定速度。 The transmission fluid pump control system according to claim 5, wherein the module efficiency of the transmission efficiency of the electric fluid pump is provided for determining the speed of the electric transmission fluid pump to be equal to the divided said predetermined speed.
7.根据权利要求5所述的变速器流体泵控制系统,还包括速度确定模块,所述速度确定模块基于使用变速器流体传感器测量的变速器流体的压力来确定用于所述电动变速器流体泵的所述速度。 The transmission fluid pump control system according to claim 5, further comprising a speed determination module, a speed determination module to determine a power transmission fluid pump based on the pressure of the fluid measured by the sensor using the transmission of the transmission fluid speed.
8.根据权利要求7所述的变速器流体泵控制系统,其中,当所述压力的减小大于预定压力时,所述速度确定模块将用于所述电动变速器流体泵的所述速度设置为等于当前速度。 8. The transmission fluid pump control system according to claim 7, wherein, when the reduced pressure is greater than a predetermined pressure, the speed determination module for the transmission speed of the electric fluid pump is set equal to current speed.
9.根据权利要求1所述的变速器流体泵控制系统,其中,所述目标速度模块基于变速器流体的温度和所述变速器流体的压力来确定所述预定最大可允许泄漏量。 9. The transmission fluid pump control system according to claim 1, wherein the target speed module based on the transmission fluid temperature and pressure transmission fluid to determine said predetermined maximum allowable leakage.
10.一种用于车辆的变速器流体泵控制方法,包括: 基于电动变速器流体泵的目标输出流率、变速器流体泵的预定最大可允许泄漏量和所述电动变速器流体泵的效率来确定所述电动变速器流体泵的目标速度;以及基于所述目标速度将功率施加到所述电动变速器流体泵。 A fluid pump control method for a transmission for a vehicle, comprising: a motor based on the target output flow rate of the fluid pump of the transmission, transmission fluid pump a predetermined maximum allowable amount of leakage and the efficiency of the electric transmission fluid pump to determine the electric transmission fluid pump target speed; and based on the target speed is applied to the electric power transmission fluid pump.
CN 201410233761 2013-05-29 2014-05-29 Transmission fluid pump speed control system and method CN104214331B (en)

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