WO2020187980A1 - Dispositif d'actionnement pour un système de freinage comprenant un capteur pour déterminer l'angle de rotation et/ou la vitesse de rotation - Google Patents

Dispositif d'actionnement pour un système de freinage comprenant un capteur pour déterminer l'angle de rotation et/ou la vitesse de rotation Download PDF

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Publication number
WO2020187980A1
WO2020187980A1 PCT/EP2020/057435 EP2020057435W WO2020187980A1 WO 2020187980 A1 WO2020187980 A1 WO 2020187980A1 EP 2020057435 W EP2020057435 W EP 2020057435W WO 2020187980 A1 WO2020187980 A1 WO 2020187980A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
actuating device
ecu
pressure supply
axis
Prior art date
Application number
PCT/EP2020/057435
Other languages
German (de)
English (en)
Inventor
Heinz Leiber
Thomas Leiber
Original Assignee
Ipgate Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ipgate Ag filed Critical Ipgate Ag
Priority to DE112020001376.6T priority Critical patent/DE112020001376A5/de
Publication of WO2020187980A1 publication Critical patent/WO2020187980A1/fr

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Classifications

    • 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
    • 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
    • B60T13/12—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 the fluid being liquid
    • B60T13/14—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 the fluid being liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/145—Master cylinder integrated or hydraulically coupled with booster
    • B60T13/146—Part of the system directly actuated by booster pressure
    • 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
    • B60T13/10—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
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T13/745—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 acting on a hydraulic system, e.g. a master cylinder
    • 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
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders

Definitions

  • Actuating device for a brake system with a sensor for determining the angle of rotation and / or the speed of rotation
  • the present invention relates to an actuating device for a braking system, with a hydraulic pressure supply device with a piston adjustable by means of an electric motor drive, and an electronic control unit having a housing, wherein a sensor target, which is arranged on the rotor or with a around an axis rotatable threaded part is connected, and a sensor element which is arranged in a sensor housing.
  • An important component of an electric motor drive is the motor sensor for electronic commutation and control of the position of the piston.
  • the motor can be driven with different types of drive, e.g. Gearbox, trapezoidal spindle or spindle can be combined with ball screw drive.
  • sensors such as segment sensors with inductive or magnetic field-sensitive sensors, or sensors which are arranged in the motor or transmission axis.
  • sensors are particularly simple in construction and consist of a sensor target, which is usually a two-pole or multi-pole magnet, and a magnetic field-sensitive sensor element, e.g. in the form of a Hall sensor, GMR or the like.
  • the sensor element must be electrically connected to the ECU, which is often attached directly to the motor or its housing or via an intermediate housing.
  • the present invention is based on the object of providing a simple way of fastening the sensor element, while at the same time the Sensor element is protected against contamination and external damage and tolerances between the sensor element and the housing of the electronic control unit are automatically compensated.
  • the sensor housing is either connected to the housing of the electronic control unit by means of an elastic connection and / or has an inner housing part and an outer housing part, at least one housing part being connected to the housing of the control unit, wherein an elastic part, in particular in the form of an elastic seal, or a sealing bellows, or at least one spring presses areas of the at least one housing part against an area of the housing.
  • the elastic part simultaneously performs a sealing function so that no dirt can penetrate inward through the connection between the housing of the electronic control unit and the sensor housing. Due to the flexibility of the seal, the sensor housing and housing of the electronic control unit can move relative to one another at the same time without the sealing function being impaired.
  • the sensor housing advantageously extends from the housing of the electronic control unit to over the axis, so that the sensor element can be arranged directly in the area of the rotor axis within the sensor housing.
  • the sensor housing has a first area, which is located between the housing of the electronic control unit and the axle, and a second area, which is located on the other side of the axle and which is connected to the housing of the electromotive drive, in particular by means of a screw connection is.
  • a window-like opening or a viewing window can be arranged between the fastening point of the sensor housing and the rotor axis through which the eccentricity of the rotor, piston and / or a part of the transmission rotating around the rotor axis can be measured, for example by means of laser beams, with a co-rotating measuring means on the rotor itself or directly on the spindle or a part connected to it is arranged.
  • the measuring means can, for example, be a disk on the side facing the opening of the housing at least one marking, pattern, coating or profiling is arranged, which can be detected, for example, by means of the aforementioned lasers or light beams.
  • the inner housing part can preferably be supported on the motor housing, in particular by means of a form fit in an axial and / or a radial direction.
  • fastening means such as e.g. Screws, attached to the motor housing.
  • the housing of the electronic control unit can be arranged or attached to the motor housing directly or via an intermediate part.
  • the inner and outer housing parts can in turn be connected to one another, in particular welded or glued to one another, wherein the housing parts of the sensor housing can both be made of plastic. This results in additional stability and the sensor housing can be fastened as a whole or as a unit to the motor housing and the housing of the electronic control unit, which significantly simplifies assembly.
  • a packaging with a small overall volume is proposed with an integrated redundant pressure supply, consisting of at least one pressure supply device, with valves, in particular solenoid valves, combined in a hydraulic unit, with at least one electronic control and regulation unit, at least one storage container, with a single master brake cylinder and pedal stroke sensors and Travel simulator with piston.
  • the invention provides different variants of modular actuation systems for brake systems which contain as many identical parts as possible for production and assembly. Possible variants according to the invention are preferably:
  • a 2-box solution with two modules comprising the pressure supply device (DV1), master brake cylinder (HZ) with travel simulator (WS), valve assembly (HCU), control and regulation unit (ECU) and reservoir (VB) and the second ESP or ABS module included.
  • a 1-box solution with only one module which includes at least one pressure supply device (DV1, DV2), valve arrangement (HCU), control and regulation unit (ECU) and storage container (VB),
  • DV1, DV2 pressure supply device
  • HCU valve arrangement
  • ECU control and regulation unit
  • VB storage container
  • HCU valve arrangement
  • ECU control and regulation unit
  • VB storage container
  • a 2-box solution with two modules comprising a pressure supply device (DV1, DV2), valve arrangement (HCU), control and regulating unit (ECU) and storage container (VB), the control and regulating unit (ECU) being fully or partially redundant, and the second module either the master brake cylinder (HZ) with optional travel simulator (WS).
  • DV1, DV2 pressure supply device
  • HCU valve arrangement
  • ECU control and regulating unit
  • VB storage container
  • the control and regulating unit ECU
  • the second module either the master brake cylinder (HZ) with optional travel simulator (WS).
  • First module as in variant e, with an electronic brake pedal with travel simulator WS or only a brake switch for level 5 being or are arranged in the second module instead of a master brake cylinder.
  • the housings described below are advantageously used here. These housings form subassemblies which, when assembled, form the entire unit for installation in the vehicle:
  • Housing A Contains the valve arrangement (HCU) for DV1 and DV2 with e.g. Valves (V), solenoid valves (MV) and one or more pressure transducers (DG).
  • HCU valve arrangement
  • V Valves
  • MV solenoid valves
  • DG pressure transducers
  • Housing B Contains the control and regulation unit ECU without redundancy with a main connector or with partial or full redundancy with two connectors to the on-board network.
  • Housing C For HZ with pedal stroke sensors and small sensor ECU and storage container VB for variant e.
  • the HZ also includes the pedal interface (PI) to the brake pedal and also the travel simulator with piston and spring.
  • the housing A is preferably made from an extruded molded piece, which is very well suited for fastening and assembly using caulking technology.
  • the DV1 with piston drive and KGT is to be integrated into the engine and also DV2 with a small piston pump from ABS / ESP, as well as the valves and solenoid valves.
  • DV1 is arranged, for example, parallel to the HZ axis and the piston pump DV2 perpendicular to DV1.
  • DV2 corresponds to the tried and tested technology of ABS / ESP, so it is inexpensive with a small construction volume.
  • a gear or vane pump with continuous delivery can be used.
  • the interface to the control and regulation unit ECU is also similar to ABS / ESP.
  • the master brake cylinder HZ with all of the aforementioned components (housing C) can be screwed to housing A - this applies to all variants except for variants e and f.
  • the housing C is mounted as an assembly separately from the unit on the front wall and the hydraulic line from the main brake cylinder HZ is connected to the housing A.
  • the reservoir VB is located in housing A with two connections to the brake circuits or with an additional connection to the pressure supply DV.
  • the float in the storage container VB contains a target with a connection to the sensor element in the control and regulation unit ECU.
  • the motor can preferably be connected to the housing A via an intermediate housing, which is preferably made of plastic get connected.
  • the sensor required for commutation of the motor and piston position can preferably be attached to the motor housing on the side of the motor housing opposite the piston and connected to the control and regulation unit ECU. The sensor is located in an additional housing to the ECU.
  • a small printed circuit board can be used in addition to the main PCB for a second connection of the solenoid.
  • the housing A can also be divided into a housing Al for the pressure supply DV2 with a small pump and with the valve MV, as well as pressure transducers DG and other components and a housing A2 for the pressure supply DV1 with motor and housing and piston with ball screw drive KGT and valves with Connection to the storage tank VB.
  • the packaging shown meets the requirements for modularity and small volume and is also very inexpensive in terms of cost and weight.
  • the storage container due to a special design of the storage container, its filler neck or opening can advantageously be arranged on or in front of the front of the housing of the electronic control unit or the actuating device so that it is easily accessible. Due to the connection of the front filler neck to the rear of the housing of the control unit, which leads past the housing of the electronic control unit, the actual storage container can usefully be arranged behind the control unit.
  • the lateral or central area of the storage container can advantageously be designed to be narrow, so that the actuating device is not or only slightly wider than in the case of a conventional storage container.
  • FIG. 1 A cross-sectional view through the motor housing, the electronic control unit and the sensor housing according to the invention
  • Fig. 2 Side view of an integrated unit according to the invention with the
  • FIG. 3 Front view with section through HCU and ECU with a die
  • ECU encompassing reservoir, the filling opening of which is arranged on the front of the unit;
  • Fig. 6 Section through the master cylinder HZ, path simulator WS and
  • Fig. 8 shows the system without the master cylinder but with the so-called E-
  • FIG. 9a Storage container according to FIG. 9 with the schematically illustrated housing of the electronic control unit and the housing for the valve arrangement.
  • motor sensor 34 for the electronic commutation and control of the position of the piston.
  • the motor can be driven with different types of drive, e.g. Gear, trapezoid or spindle 57 with ball screw 58, as shown in Fig. 1, can be combined.
  • sensors such as segment sensors with inductive or magnetic field-sensitive sensors, can be used, or sensors that are arranged in the motor or transmission axis.
  • These sensors are particularly simple in construction and consist of a sensor target, e.g. in the form of a two-pole or multi-pole magnet, and a magnetic field-sensitive sensor element, e.g. in the form of a Hall sensor, GMR Sensors, etc. together.
  • This sensor element 34 is electrically connected to the electronic control unit ECU, which is attached to the engine either directly or via an intermediate housing.
  • the sensor element 34 is preferably arranged in a sensor housing which is composed of an outer housing part 52 and an inner housing part 52a and, among other things, accommodates a printed circuit board 22 on which the sensor element 34 can be arranged.
  • an elastic part 61 is provided according to the invention.
  • tolerances in all three directions x, y, z must be compensated. According to the invention, this is achieved by a corresponding construction and fastening of the sensor housing on the housing 18 of the electronic control unit ECU and on the motor housing.
  • the sensor housing is advantageously divided into two parts into an outer housing 52 and an inner housing 52a, the housing parts 52, 52a using conventional connection techniques such as e.g. Welding or gluing connected to one another and are preferably made of plastic.
  • the sensor housing is also attached to the motor housing 62, preferably in two places.
  • the sensor circuit board 22 is flexible in the upper part of the connector strip in order to cope with the above-mentioned tolerances.
  • a flex PCB flexible printed circuit board
  • the electrical connection 22a from this flexible circuit board 22 to the main circuit board 23 of the electronic control unit ECU is preferably made via the particularly fail-safe plug connector 51 with press-fit contacts.
  • the housing 18 of the electronic control unit ECU has a recess with a cover.
  • the sensor housing 52, 52a is connected to a projection of the ECU housing 18 and fixed thereto.
  • an elastic part 61 which can be, for example, a flexible elastic seal or a sealing bellows.
  • the elastic part is preferably designed as a lip seal. This flexible and elastic seal 61 thus serves for 3-axis tolerance compensation.
  • the electrical connection from the motor winding to the circuit board 23 is made via a conventional plug contact.
  • This sensor arrangement shown in FIG. 1 also enables the measurement of the rotor eccentricity, which acts on the spindle and generates transverse forces on the piston 8.
  • a measuring means 53 which is arranged on the rotor or the spindle nut 56 and, in the simplest case, is a measuring flange or a disk, is used to measure the rotor eccentricity.
  • the rotor eccentricity also affects the axial direction and can be measured with laser technology.
  • the outer sensor housing part 52a has an opening 152 in its lower region 52 ′′ , which is closed with a sealing plug 54 after the measurement.
  • the surface of the measuring means 53 can have markings on its side facing the outer sensor housing part 52 for the measurement, be provided with a coating and / or be profiled.
  • the lower region 52 ′′ is fastened to the motor housing 62 by means of a fastening screw 55.
  • FIG. 2 shows the side view of the integrated unit housing A with valve arrangement HCU, which contains the components MV, pressure transducer DG, piston for DV1 and DV2 and attachment of the motors of DV1 and DV2.
  • the housing can also be divided into housings A1 and A2.
  • the components such as, for example, valves, solenoid valve MV, pressure transducer DG are preferably attached to an extruded or extruded block 24, for example the MV, preferably by caulking or clinching, which also includes its sealing.
  • housing A1 will contain the sub-block 24.
  • Housing A2 can, for example, be a die-cast part without any components to be caulked.
  • the piston 8 of the pressure supply unit DV1 is shown with a return spring and housing cover 7, which, for example, is preferably driven via the motor 2 by a spindle and ball screw drive (not shown) KGT.
  • KGT spindle and ball screw drive
  • housing A this is screwed to the HCU block 24 via an intermediate housing 3 with fastening screws.
  • housing A2 With housing A2 the motor is attached without an intermediate housing.
  • the reservoir VB is connected to the brake circuits 1 and 2 by two connections 9a and 9b.
  • the suction valve SV for the pressure supply DV is placed in the housing.
  • the sensor housing 3 with the angle of rotation sensor is connected to both the motor 2 and the ECU 18 via a preferably flexible printed circuit board (not shown) with the intermediate housing.
  • the plugs are attached, which are designed twice in the redundant ECU.
  • a connecting line 11 to the master brake cylinder HZ is provided.
  • the storage container VB can, as usual, contain a level sensor (NS) with a float, the target with the sensor element being arranged in the control and regulating unit ECU, which is preferably designed redundantly at levels 4 and 5.
  • the master brake cylinder HZ which is screwed to the HCU block 24 with fastening screws 13, is arranged behind the valve arrangement block HCU.
  • FIG. 6 shows more details here.
  • a flange 12 for fastening with corresponding screws 14 on the end wall shown in dashed lines.
  • a simplified flange can also be used for fastening in the unit or engine compartment.
  • the unit should be as inclined to the end wall for good ventilation with about 15 0th
  • the pedal interface PI and pedal tappet 1 are connected to the master brake cylinder HZ.
  • the connections of the valve arrangement HCU to the wheel brakes RB can be made on the motor side or on the front side.
  • the axis of the pressure supply device DV1 lies parallel to the HZ axis or approximately perpendicular to the flange and the DV2 axis is perpendicular to the axis of the pressure supply device DV1.
  • the axis a DV 2 of the piston of the pressure supply device DV2 can be rotated both parallel to the axis aDV1 of the pressure supply device DV1 and at an angle a, which advantageously shortens the overall length.
  • an arrangement of a 2 parallel to the vertical axis can be used. In this case, a different installation location must be provided for the lower plug, for example on the opposite side of the control and regulation unit ECU.
  • Fig. 3 shows the view from the front.
  • the outline contour is still within the small vacuum vac. of 8 "can be accommodated and is therefore suitable for installation on the bulkhead.
  • the big advantage is the overall width of approx. 50% of the above mentioned BKV, which is very favorable for right and left-hand drive vehicles.
  • the length to the above mentioned BKV is also considerably shorter, and thus forms a basis for a broad application of the modular concept according to the invention.
  • the various housings A (A1, A2), B, C and VB are to be provided.
  • Housing B is, for example, behind the HCU block 24 and is with screwed to this and sealed, as with ABS.
  • the DV2 motor acts with e.g. Eccentric on the piston pump as with ABS / ESP. As is known, the installation space for this is very small. Alternatively, the motor can also drive a short gear pump.
  • main printed circuit board PCB 23 On the left side the ECU with housing 18 is arranged with main printed circuit board PCB 23, which is connected to the plug St on top.
  • the MV coils are connected to the printed circuit board PCB 23 via connecting webs 21, as usual, with press-fit contacts.
  • the connection from 21 to the coil wire is considered fail-safe due to automatic production with process control, not necessarily the contact to the PCB.
  • the MV have important functions and must be designed for levels 4 and 5 in particular with redundant control of the drivers 20 / 20r, the drivers also having a disconnector.
  • the contact to the circuit board PCB can also be made redundant by a second contact on the connecting web 21, which is connected to a small circuit board PCB 22 with the second driver.
  • FIGS. 4 and 5 show a side view and a front view of a unit according to the invention which, apart from the design of the storage container VB, corresponds to the unit as shown and described in FIGS. As can be seen from FIG.
  • the front area VB v is located in front of the front side ECU-V of the housing B of the electronic control unit ECU, so that the filling opening can be reached more easily. Since it is generally not sensible for reasons of space to arrange the entire storage container VB in front of or next to the electronic control unit ECU, the invention provides that only a narrow central area VBM extends laterally next to the housing B towards the rear of the ECU-H of the ECU , the middle area VBM opening into its rear area VBH, which is much larger in volume and is arranged behind the housing B of the electronic control unit ECU. It is of course also possible for the storage container VB to also overlap the housing B of the ECU. If the bulkhead SW is arranged at an angle f to the vertical, the front area VBV of the storage container VB should be designed so that the surface normal of the filling opening 100 is aligned vertically.
  • FIG. 9 shows a space-saving schematic configuration of a storage container VB, which has a front area VB v , a middle area VBM and a rear area VB H.
  • the front area VB v has an upper filling opening 100 which can be closed with the cover 101.
  • the storage container VB surrounds the housing B of the electronic control unit ECU on three sides, namely its front side ECU-V, its side wall ECU-S and its rear or rear side ECU-H.
  • the back of the ECU-H faces the splash guard wall SW.
  • the storage container VB as shown in FIG. 9a, can also rest against the rear wall of the housing of the valve arrangement HCU or engage behind it.
  • Figure 6 shows the main brake cylinder HZ with housing, in which the HZ piston 33 and WS piston with spring for the counterforce and pedal characteristic is built.
  • the travel simulator piston can also be accommodated in block A or housing A.
  • the piston also has redundant seals 45 with ballast dr to interior. If the seal 45 fails, the failure is recognized via the leakage flow and the failure is not relevant. This small leakage flow restrictor Dr allows diagnosis of the failure of the first seal.
  • the travel simulator piston is supported on the flange 12 and therefore does not require a separate closure piece.
  • the HZ piston 23 with a return spring 50 is arranged parallel to the travel simulator piston.
  • the piston can be guided in sliding rings 48 with little friction, and the sealing effect of the piston is also less affected.
  • a separate bearing part 49, which is supported on the flange, is preferably used for the sliding rings and seals.
  • a KWS 30 force-displacement sensor can be arranged in the HZ piston to diagnose the WS position simulator.
  • the sensor rods 31 and 31a are connected to the piston 23 and the pedal tappet. These rods are connected to a locking coupling 32-34, each with piston and pedal tappet. This coupling consists of a ball 34 with a spring 33 in the housing 22. Blocking of the pedal tappet when a sensor is clamped is avoided.
  • Fig. 7 shows the arrangement of two alternative embodiments of the pedal travel sensors.
  • the first variant with rack 38, gear 37, drive shaft 36 to target 35 and sensor element 34 on PCB 23 has already been described in DE102015104246.
  • This version requires little installation space and is inexpensive.
  • a guide part 39 is e.g. with pin pressed into the sensor rod. This is guided in the upper part in a guide strip 40, so that an angular twist is small, which affects the target 41.
  • This target acts on an inductive sensor 42 with an evaluation circuit and is connected to the main PCB 23 and sits in the ECU housing 14.
  • HCU / ECU for the two variants without redundant pressure supply
  • HZ and WS separate and integrated with pedal sensors for five of the six variants, with the exception of variant f. without master brake cylinder, separate HZ but with additional VB.
  • Fig. 8 shows the pressure supply devices DV1 and DV2 with Ventilanord voltage.
  • Brake pedal a so-called e-pedal, with WS pedal travel sensors with a small sensor ECU and KWS without a hydraulically acting master brake cylinder HZ combined in one unit.
  • This has advantages if the installation volume in the equipment room is small or the noise requirements are high.
  • the arrangement with pedal actuation with WS so-called E-Pedal, can be used.
  • the signals from the pedal travel sensors are processed in a sensor ECU and fed to the central ECU.
  • a brake switch can also be used for level 5 as an alternative to the electric pedal.
  • the above-mentioned unit has the 2-circuit VB with float and level sensor NS, which can be integrated in the central control and regulation unit ECU.
  • This level sensor NS should also be designed redundantly and continuously measure the level, since a loss of volume due to a leak is quickly detected via this. Since the connection to the master cylinder HZ is missing here and thus also the fall-back level to the master cylinder HZ in the event of failure of both pressure supply devices DV1 and DV2 and / or the on-board zes, the valves BPI and BP2 are preferably designed as normally closed valves. Reference list
  • Pressure supply device DV2 perpendicular to the axis a D vi of the first pressure supply device DV1
  • Pressure supply device DV2 perpendicular to the axis a D vi of the first pressure supply device DV1

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un dispositif d'actionnement pour un système de freinage, comprenant : – un dispositif d'alimentation en pression hydraulique comprenant un piston pouvant être déplacé au moyen d'un entraînement par moteur électrique, – une unité de commande électronique (ECU) qui présente un boîtier (18), – une cible de capteur qui est connectée au rotor (64) ou à une pièce filetée (56) pouvant tourner autour d'un axe (a DVI), – un élément de capteur qui est disposé dans un boîtier de capteur (52, 52a), caractérisé en ce que le boîtier de capteur (52, 52a) - est connecté au moyen d'une liaison élastique au boîtier (18) de l'unité de commande électronique (ECU) et/ou –présente une partie de boîtier intérieure (52a) et une partie de boîtier extérieure (52), au moins une partie de boîtier (52, 52a) étant connectée au boîtier (18) de l'unité de commande (ECU), une partie élastique (61) ou au moins un ressort, pressant des régions de l'au moins une partie de boîtier (52, 52a) contre une région du boîtier (18) de l'unité de commande électronique (ECU).
PCT/EP2020/057435 2019-03-21 2020-03-18 Dispositif d'actionnement pour un système de freinage comprenant un capteur pour déterminer l'angle de rotation et/ou la vitesse de rotation WO2020187980A1 (fr)

Priority Applications (1)

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DE112020001376.6T DE112020001376A5 (de) 2019-03-21 2020-03-18 Betätigungseinrichtung für ein Bremssystem, mit einem Sensor zur Ermittlung des Drehwinkels und/oder der Drehgeschwindigkeit

Applications Claiming Priority (2)

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DE102019107320.0A DE102019107320A1 (de) 2019-03-21 2019-03-21 Betätigungseinrichtung für ein Bremssystem, mit einem Sensor zur Ermittlung des Drehwinkels und/oder der Drehgeschwindigkeit
DE102019107320.0 2019-03-21

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JP7493016B2 (ja) * 2021-12-07 2024-05-30 ビーダブリュアイ（シャンハイ）カンパニー リミテッド 流体で浸されたボールねじを有する圧力平衡化ｐｓｕピストンを備えるブレーキ・バイ・ワイヤ・モジュールおよびバックアップ・ポンプ・アセンブリ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1345005A1 (fr) * 2002-03-12 2003-09-17 Alps Electric Co., Ltd. Capteur d'angle de rotation ayant une structure étanche à l'eau et antidéflagrante
DE102007026446A1 (de) * 2007-06-06 2008-12-11 Robert Bosch Gmbh Schnell montierbares Sensorgehäuse für Sensoren mit Luftkontakt
WO2011032747A1 (fr) * 2009-09-18 2011-03-24 Robert Bosch Gmbh Dispositif pour le montage antivibratile d'un organe fluidique et organe fluidique associé
DE102015104246A1 (de) 2015-03-20 2016-09-22 Ipgate Ag Betätigungsvorrichtung für eine Kraftfahrzeugbremse
DE102017216002A1 (de) * 2017-09-12 2019-03-14 Robert Bosch Gmbh Pumpenanordnung für ein Hydraulikaggregat mit einem Pumpenkolben

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017436A1 (de) * 2011-04-18 2012-10-18 Ipgate Ag Betätigungsvorrichtung für eine Fahrzeug-Bremsanlage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1345005A1 (fr) * 2002-03-12 2003-09-17 Alps Electric Co., Ltd. Capteur d'angle de rotation ayant une structure étanche à l'eau et antidéflagrante
DE102007026446A1 (de) * 2007-06-06 2008-12-11 Robert Bosch Gmbh Schnell montierbares Sensorgehäuse für Sensoren mit Luftkontakt
WO2011032747A1 (fr) * 2009-09-18 2011-03-24 Robert Bosch Gmbh Dispositif pour le montage antivibratile d'un organe fluidique et organe fluidique associé
DE102015104246A1 (de) 2015-03-20 2016-09-22 Ipgate Ag Betätigungsvorrichtung für eine Kraftfahrzeugbremse
DE102017216002A1 (de) * 2017-09-12 2019-03-14 Robert Bosch Gmbh Pumpenanordnung für ein Hydraulikaggregat mit einem Pumpenkolben

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