WO2021104717A1 - Elektrisch ansteuerbares antriebsaggregat - Google Patents
Elektrisch ansteuerbares antriebsaggregat Download PDFInfo
- Publication number
- WO2021104717A1 WO2021104717A1 PCT/EP2020/077063 EP2020077063W WO2021104717A1 WO 2021104717 A1 WO2021104717 A1 WO 2021104717A1 EP 2020077063 W EP2020077063 W EP 2020077063W WO 2021104717 A1 WO2021104717 A1 WO 2021104717A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding element
- motor shaft
- drive unit
- unit according
- magnetic element
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/404—Control of the pump unit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Definitions
- the invention relates to an electrically controllable drive unit according to the features of the preamble of claim 1.
- Such drive units are used, for example, in electronically slip-controllable brake systems of motor vehicles to drive a pressure generator as part of a brake pressure control.
- the drive units are electrically controlled by an electronic control unit of the brake system.
- the pressure generator actuated thereby conveys a pressure medium within a brake circuit from a reservoir of the brake system to connected wheel brakes.
- a brake pressure then builds up in the wheel brakes in proportion to the pressure medium volume conveyed.
- this brake pressure can be adapted for each wheel to the slip conditions that currently prevail on the respectively assigned wheels of the vehicle. This can prevent spinning wheels and consequently improve the driving stability of a vehicle.
- braking processes can be carried out independently of the driver depending on the current traffic situation.
- the volume of pressure medium displaced by the pressure generator represents a decisive parameter in these control and / or regulation processes, which can be determined from the actuation signals of the pressure generator.
- Existing sensor devices record the angle of rotation of the rotor of the drive unit and transmit the measured angle of rotation signal to the electronic control unit for evaluation.
- Such sensor devices are constructed from a signal transmitter rotating with the motor shaft and an associated signal receiver which, on the other hand, is arranged in a stationary manner.
- An electrically controllable drive unit according to the features of the preamble of claim 1 belongs to the prior art and is disclosed, for example, in DE 102017218 648 A1.
- Such a drive unit 10 is also shown in FIG. 1 of this patent application.
- This drive unit 10 comprises an electric motor 12 with a rotor 14 that can be driven to rotate and a motor shaft 16 connected to the rotor 14 in a rotationally fixed manner.
- the rotor 14 is conventionally constructed and has an iron core and several coils wound on it and arranged next to one another in the circumferential direction of the iron core. In a known manner, the coils form magnets in the current-carrying state, which interact with magnets which are fixedly arranged on an opposite inner surface of a housing 18 of the drive unit 10 in such a way that the rotor 14 and motor shaft 16 execute a rotational movement.
- the motor shaft 16 is rotatably mounted in the housing 18 by means of roller bearings 20, for example.
- roller bearings 20 for example.
- several eccentric elements 22 are arranged on the motor shaft 16, for example, in order to actuate devices (not shown) which are arranged transversely to the motor shaft 16.
- the detail X according to FIG. 1 shows a signal transmitter 24 of a sensor device for electronic detection and evaluation of the angle of rotation of the rotor 14.
- This signal transmitter 24 is arranged on the end face of the motor shaft 16 facing away from the rotor 14. It has a magnetic element 26 which is fastened indirectly to the motor shaft 16 via a holding element 28.
- the holding element 28 is cup-shaped and consists of magnetically non-conductive material.
- a mandrel 30 protrudes from a base of the holding element 28, with which the holding element 28 is pressed into an associated centering bore 32 of the motor shaft 16 and glued therein.
- a blind hole-like, outwardly open receptacle 34 is formed in which the magnetic element 26 is inserted positively and flush to the outside.
- the magnetic element 26 is also fixed in this receptacle 34 of the holding element 28 by means of an adhesive connection.
- the rotor 14 Under operating conditions of this drive unit, the rotor 14 is often greatly accelerated or decelerated.
- the dynamic, axial and also radial forces occurring in this case load the explained adhesive connections and can lead to the magnetic element 26 of the signal transmitter 24 executing undesired relative movements, in particular axially, with respect to the motor shaft 16.
- These relative movements lead to inaccuracies in the detection of the covered angle of rotation of the motor shaft 16 and consequently to possible errors in the electrical control of the electric motor 12 of the drive unit 10 or in the regulation of the displaced pressure medium volume. The latter has an undesirable influence on the brake pressure regulation that takes place.
- An electrically controllable drive unit has the advantage that the attachment of the signal transmitter to the motor shaft does not require adhesive connections. This eliminates elasticities and the rotation angle signal is recorded with greater accuracy. Increasing accuracy is accompanied by an improvement in the electrical controllability of the drive unit and consequently a reduction in possible deviations between an actually conveyed pressure medium volume and a desired setpoint value. Apart from that, the elimination of the adhesive connections simplifies the manufacturing process of the drive unit in a large series and manufacturing time and costs can be saved.
- a holding element which is designed as a hollow cylinder, in the interior of which the magnetic element of a signal transmitter is received.
- the hollow cylinder has an open first end with which the holding element, including the magnetic element inserted therein, is fastened to the motor shaft, and a second end opposite thereto with holding element sections which enter the open cross section of the hollow cylinder protrude.
- the magnetic element of the signal transmitter rests against these retaining element sections and is thereby secured against falling out of the retaining element.
- a holding element according to the invention can be manufactured inexpensively in a deep-drawing process and receives the magnetic element of the signal transmitter extremely rigidly. As a result, this magnetic element assumes a constant relative position to the assigned signal receiver over the service life and regardless of the loads occurring during operation of the drive unit.
- the motor shaft advantageously has a section which is reduced in its outer diameter compared to the outer diameter of the motor shaft.
- the hollow cylindrical holding element is fixed with its open first end on this section.
- the holding element can be pushed onto this shoulder of the motor shaft in a simple manner and is at the same time centered relative to the longitudinal axis of the motor shaft. It is then firmly connected to the motor shaft by means of a first welded connection.
- a transition from the shoulder to the circumference of the motor shaft forms a shoulder which serves as an axial stop for the holding element when it is mounted on the motor shaft.
- the coaxiality of the holding element or the signal transmitter with respect to the longitudinal axis of the motor shaft and the length tolerance of the motor shaft holding element unit can be maintained within relatively narrow limits on the basis of the structural measures explained on the components.
- the magnetic element of the signal transmitter is held in place by a bracket element within the holding element.
- the latter is in turn firmly connected to the holding element by a second welded connection.
- the welded connection increases the deformation resistance of the unit consisting of the holding element, signal transmitter and motor shaft, and the bracket element together with the second welded connection also ensures that the temperature changes occur Fixation of the magnetic element in the holding element.
- the bracket element also enables a constant air gap to be set between an end face of the motor shaft and the magnetic element. With the air gap, the magnetic flux is directed in the direction of the signal receiver, which benefits the signal strength and facilitates signal detection.
- the bracket element can be produced inexpensively, for example without cutting.
- the drawing includes a total of 3 figures, of which
- Figure 1 shows a drive unit according to the features of the preamble of
- FIG. 2 shows the detail X according to FIG. 1 in an embodiment according to the invention
- FIG. 3 shows the signal transmitter according to FIG. 2 without a magnetic element inserted therein in a perspective view.
- FIG. 2 shows the detail X according to FIG. 1 in an embodiment according to the invention.
- the motor shaft 16 of a drive unit 10 is shown in the area of its end facing away from a rotor 14 of an electric motor 12 (not shown). According to Figure 2, this end of the motor shaft 16 is equipped with a signal transmitter 24 of a sensor device.
- the signal transmitter 24 comprises a magnetic element 26 which is fastened to the end face of the motor shaft 16 by means of a holding element 28 made of magnetically non-conductive material.
- the holding element 28 is designed as a hollow cylinder, inside which the magnetic element 26 is received and firmly anchored by means of a bracket element 36.
- the hollow cylinder has an open first end, with which it has an outer diameter compared to an outer diameter of the Motor shaft 16 withdrawn paragraph 38 is pushed.
- a transition from the circumference of the motor shaft 16 to the circumference of the shoulder 38 is designed as a right-angled shoulder 40, for example.
- the holding element 28 rests on this shoulder 40 with a circumferential, radially protruding collar 42 which is formed at the open end of this holding element 28.
- the retaining element 28 can be aligned concentrically to a longitudinal axis L of the motor shaft 16 via the shoulder 38 and its shoulder 40 and, after it is initially positively fastened to the motor shaft 16, is additionally connected to this motor shaft 16 by means of a first welded connection 44.
- This welded connection 44 is formed in FIG. 2 on the basis of an annular, circumferential weld seam, but alternatively a plurality of successive weld points or weld seam sections could also be provided circumferentially.
- the second end of the holding element 28 opposite the open first end of the holding element 28 and therefore facing away from the motor shaft 16 forms holding element regions 46 which protrude into the open cross section of the hollow cylindrical holding element 28 and extend, for example, across the entire open cross section of the holding element 28 can.
- the magnetic element 26 of the signal transmitter 24 rests axially on the holding element regions 46 and is therefore mechanically secured against falling out of the interior of the holding element 28.
- a bracket element 36 is used to axially fix the magnetic element 26 within the holding element 28.
- the latter is inserted into the holding element 28 under radial prestress and also forms a form-fitting connection with the magnetic element 26.
- the bracket element 36 is preferably made from a rectangular sheet metal strip and bent into a U-shape. Accordingly, the bracket element 36 has a base 48 which spans the end face of the magnetic element 26 located in the interior of the holding element 28 and also has legs 50 formed at both ends of this base 48 and projecting at right angles therefrom in the same direction. Groove-shaped recesses 52 are formed on the magnetic element 26 on its circumference, which recesses extend in the direction of the longitudinal axis L of the motor shaft 16 starting from the inner end face of the magnetic element 26 until shortly before it extend opposite end face. One of the legs 50 of the bracket element 36 is located in each recess 52.
- the bracket element 36 is materially connected to the holding element 28 by a second welded connection 54.
- the weld seam of this second welded connection 54 is designed in a circumferential ring shape, but can alternatively also consist of several weld seam sections following one another in the circumferential direction or of several weld points.
- the magnetic element 26 of the signal transmitter 24 is thus held between the holding element region 46, which protrudes into the open cross section of the hollow cylindrical holding element 28, and the bracket element 36.
- FIG. 2 shows the explained holding element 28 again in a perspective illustration.
- Components or component sections that correspond to one another are provided with the same reference symbols in FIGS. 2 and 3 for the sake of simplicity.
- the magnetic element of the signal transmitter 24 is not shown in order to be able to better show the design of the holding element 28 and of the bracket element 36.
- the holding element region 46 protruding into the open cross section of the holding element 28 is designed as a transverse web which extends over the entire opening cross section of the holding element 28 and divides this opening cross section into two separate partial opening cross sections 58.
- changes or additions to the exemplary embodiment described are conceivable without deviating from the basic concept of the invention according to claim 1 explained at the beginning.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Braking Arrangements (AREA)
- Brushless Motors (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202080082439.7A CN114731094A (zh) | 2019-11-28 | 2020-09-28 | 能电操控的驱动机组 |
EP20781490.6A EP4066362A1 (de) | 2019-11-28 | 2020-09-28 | Elektrisch ansteuerbares antriebsaggregat |
US17/773,984 US20230006519A1 (en) | 2019-11-28 | 2020-09-28 | Electrically controllable drive assembly |
KR1020227021010A KR20220103778A (ko) | 2019-11-28 | 2020-09-28 | 전기 제어 가능 구동 어셈블리 |
JP2022530148A JP7419528B2 (ja) | 2019-11-28 | 2020-09-28 | 電気起動可能な駆動アッセンブリ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019218441.3 | 2019-11-28 | ||
DE102019218441.3A DE102019218441A1 (de) | 2019-11-28 | 2019-11-28 | Elektrisch ansteuerbares Antriebsaggregat |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021104717A1 true WO2021104717A1 (de) | 2021-06-03 |
Family
ID=72670714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/077063 WO2021104717A1 (de) | 2019-11-28 | 2020-09-28 | Elektrisch ansteuerbares antriebsaggregat |
Country Status (7)
Country | Link |
---|---|
US (1) | US20230006519A1 (de) |
EP (1) | EP4066362A1 (de) |
JP (1) | JP7419528B2 (de) |
KR (1) | KR20220103778A (de) |
CN (1) | CN114731094A (de) |
DE (1) | DE102019218441A1 (de) |
WO (1) | WO2021104717A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021205297A1 (de) | 2021-05-25 | 2022-12-01 | Robert Bosch Gesellschaft mit beschränkter Haftung | Rotor für eine elektrische Maschine, eine elektrische Maschine, sowie Verfahren zum Herstellen eines solchen Rotors |
DE102022206457A1 (de) | 2022-06-27 | 2023-12-28 | Baumüller Nürnberg GmbH | Verfahren zur Montage eines Magneten eines Hall-Sensors an einer Rotorwelle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110181221A1 (en) * | 2008-10-03 | 2011-07-28 | Nidec Corporation | Motor |
US20160141940A1 (en) * | 2014-11-18 | 2016-05-19 | Bühler Motor GmbH | Transducer device with form-fitting connection |
JP5959693B1 (ja) * | 2015-05-28 | 2016-08-02 | 三菱電機株式会社 | 制御ユニット一体型電動駆動装置 |
JP5996464B2 (ja) * | 2013-03-21 | 2016-09-21 | 日立オートモティブシステムズ株式会社 | 回転角検出装置の製造方法 |
DE102017218648A1 (de) | 2017-10-19 | 2019-04-25 | Robert Bosch Gmbh | Antriebsaggregat, insbesondere Hydraulikaggregat einer elektronisch schlupfregelbaren Fahrzeugbremsanlage |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010023140A1 (de) * | 2010-06-09 | 2011-12-15 | Honigmann Industrielle Elektronik Gmbh | Hystereseeinheit |
JP5489224B2 (ja) * | 2010-06-17 | 2014-05-14 | 株式会社デンソー | モータ、および、それを用いた電動パワーステアリング装置 |
JP6180197B2 (ja) * | 2013-06-17 | 2017-08-16 | 株式会社ケーヒン | 回転角度検出装置 |
KR102175933B1 (ko) * | 2013-12-11 | 2020-11-09 | 엘지이노텍 주식회사 | 모터 |
DE102014010876B3 (de) * | 2014-07-25 | 2015-10-01 | Hilite Germany Gmbh | Aktuator für ein Hydraulikventil eines Nockenwellenschwenkmotorverstellers und Hydraulikventil mit einem Aktuator für einen Nockenwellenschwenkmotorversteller |
KR102397192B1 (ko) * | 2015-08-05 | 2022-05-12 | 엘지이노텍 주식회사 | 센서 조립체 및 이를 포함하는 모터 |
US10584953B2 (en) * | 2015-11-26 | 2020-03-10 | Mitsubishi Electric Corporation | Angle detection device and electric power steering device |
DE112016006886B4 (de) * | 2016-07-12 | 2022-01-13 | Mitsubishi Electric Corporation | Elektromagnetischer Aktuator |
US20200036266A1 (en) * | 2017-03-31 | 2020-01-30 | Nidec Tosok Corporation | Electric actuator |
JP2018182161A (ja) * | 2017-04-18 | 2018-11-15 | Tdk株式会社 | 磁石、磁石構造体、及び、回転角度検出器 |
-
2019
- 2019-11-28 DE DE102019218441.3A patent/DE102019218441A1/de active Pending
-
2020
- 2020-09-28 EP EP20781490.6A patent/EP4066362A1/de active Pending
- 2020-09-28 KR KR1020227021010A patent/KR20220103778A/ko unknown
- 2020-09-28 CN CN202080082439.7A patent/CN114731094A/zh active Pending
- 2020-09-28 WO PCT/EP2020/077063 patent/WO2021104717A1/de unknown
- 2020-09-28 US US17/773,984 patent/US20230006519A1/en active Pending
- 2020-09-28 JP JP2022530148A patent/JP7419528B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110181221A1 (en) * | 2008-10-03 | 2011-07-28 | Nidec Corporation | Motor |
JP5996464B2 (ja) * | 2013-03-21 | 2016-09-21 | 日立オートモティブシステムズ株式会社 | 回転角検出装置の製造方法 |
US20160141940A1 (en) * | 2014-11-18 | 2016-05-19 | Bühler Motor GmbH | Transducer device with form-fitting connection |
JP5959693B1 (ja) * | 2015-05-28 | 2016-08-02 | 三菱電機株式会社 | 制御ユニット一体型電動駆動装置 |
DE102017218648A1 (de) | 2017-10-19 | 2019-04-25 | Robert Bosch Gmbh | Antriebsaggregat, insbesondere Hydraulikaggregat einer elektronisch schlupfregelbaren Fahrzeugbremsanlage |
Also Published As
Publication number | Publication date |
---|---|
EP4066362A1 (de) | 2022-10-05 |
JP2023503941A (ja) | 2023-02-01 |
CN114731094A (zh) | 2022-07-08 |
KR20220103778A (ko) | 2022-07-22 |
JP7419528B2 (ja) | 2024-01-22 |
US20230006519A1 (en) | 2023-01-05 |
DE102019218441A1 (de) | 2021-06-02 |
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