GB2582945A - Valves support for a hydraulic electronic control unit braking system, hydraulic electronic control unit braking system comprising said valves support - Google Patents

Valves support for a hydraulic electronic control unit braking system, hydraulic electronic control unit braking system comprising said valves support Download PDF

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Publication number
GB2582945A
GB2582945A GB1905056.6A GB201905056A GB2582945A GB 2582945 A GB2582945 A GB 2582945A GB 201905056 A GB201905056 A GB 201905056A GB 2582945 A GB2582945 A GB 2582945A
Authority
GB
United Kingdom
Prior art keywords
valves
electronic control
control unit
support
actuation
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB1905056.6A
Other versions
GB201905056D0 (en
GB2582945B (en
Inventor
Loghin Constantin
Gavrila George
Luca Dragos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Teves AG and Co OHG
Continental Automotive Romania SRL
Original Assignee
Continental Teves AG and Co OHG
Continental Automotive Romania SRL
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 Continental Teves AG and Co OHG, Continental Automotive Romania SRL filed Critical Continental Teves AG and Co OHG
Priority to GB1905056.6A priority Critical patent/GB2582945B/en
Publication of GB201905056D0 publication Critical patent/GB201905056D0/en
Publication of GB2582945A publication Critical patent/GB2582945A/en
Application granted granted Critical
Publication of GB2582945B publication Critical patent/GB2582945B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • B60T8/343—Systems characterised by their lay-out
    • 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
    • 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
    • B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
    • B60T8/4081—Systems with stroke simulating devices for driver input
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0814—Monoblock manifolds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/085—Electrical controllers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S303/00—Fluid-pressure and analogous brake systems
    • Y10S303/10—Valve block integrating pump, valves, solenoid, accumulator

Landscapes

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

Abstract

A valve support for a hydraulic electronic control unit (HECU). The support includes a flat side (30a; fig. 6) and a stepped side (30b; fig. 6) forming thicker 30.1 and thinner 30.2 parts. A first through bore 5 in the thicker part is for a motor shaft 2.1 of an electric motor 2. On the stepped side, holes 7.1.1 in the thicker part are for actuation valves, with holes 7.2.1 in the thinner part for modulator valves. A first ECU 40.1 is to be located on the thicker part to operate the actuation valves and a second ECU 40.2 on the thinner for the modulation valves, the two ECUs being included to limit the spread of circuit board electrical corrosion. There may be a second bore on the flat side in the thicker part for a piston 8.1, a third bore (14.2; fig. 9b) on the flat side in the thinner part for a pedal feel simulator (14; fig. 10b) and a fourth bore (15.1; fig. 9a) on a perpendicular lateral side for a tandem master cylinder 15. Also claimed is a HECU and braking system including the valves support and methods for producing the valve support.

Description

Description
Valves support for a hydraulic electronic control unit braking system, hydraulic electronic control unit braking system 5 comprising said valves support and methods for producing said valves support
FIELD OF THE INVENTION
The invention relates to hydraulic electronic braking systems and, in particular, to a new configuration of a valves support for a hydraulic electronic control unit (HECU) braking system, to the hydraulic electronic control unit (HECU) comprising said valves support, to the braking system comprising the hydraulic electronic control unit and to methods for producing said valves support.
BACKGROUND OF THE INVENTION
The automotive braking industry uses hydraulic electronic control unit (HECU) in order to ensure the control of the 20 hydraulic pressure of the fluid from the braking system to the wheels.
The mechanical architecture of a hydraulic electronic control unit (HECU) according to prior art is presented in working position in Fig. 1, comprising the following components: a brake 25 fluid reservoir 1 in the upper part of the assembly, an electrical motor 2 and its corresponding motor shaft 2.1 transversely passing through a valves support 3, said valves support 3 accommodating a plurality of electro-mechanical valves, further referred as valves, on the opposite side with regards to the 30 electrical motor 2, further comprising an electronic control unit (ECU) 4, a pedal feel simulator (FFS) 14, as well as other components, not referred here.
There are several types of valves accommodated by the valves support 3, out of which two types are of interest for the invention: actuation valves 7.1 and modulator valves 7.2, both used in relation to the pedal feel simulator (PFS) in order to regulate the pressure of the brake fluid, so as to ensure the control of the braking process.
The valves support 3 fulfils main roles such as: Accommodates the valves and other components of the braking system by fixing them mechanically; Provides the hydraulic connections between the components accommodated.
In Fig. 2 is presented a detail view of a valves support 3 from the state of the art showing the actuation valves 7.1 and the modulator valves 7.2 in assembled state.
The electronic control unit (ECU) 4 has three main functions: Operates the actuation valves 7.1; Operates the modulator valves 7.2; Operates the electrical motor 2.
To this end, the electronic control unit (ECU) 4 integrates coils 10 on the side facing the valves support 3, as seen in Fig. 3b) and Fig. 4, one coil corresponding to each valve from the plurality of actuation valves 7.1 and respectively from the plurality of modulator valves 7.2. The coils 10 are electrically connected by means of a printed circuit board (PCB) 9 of the electronic control unit (ECU) 4 on its opposite side in respect to the valves support 3.
As seen in Fig. 5, the valves support 3 from the state of the art is a cuboid with all sides essentially flat. This means that each of the sides may have small cavities or protrusions, however the general impression is that of a cuboid.
The hydraulic electronic control unit (HECU) according to the state of the art, as depicted in Fig. 1, Fig. 2, Fig. 3a), Fig. 3b), Fig. 4 contains a single electronic control unit (ECU) 4 having a single printed circuit board (PCB) 9 integrating coils 10 for all actuation valves 7.1 and modulator valves 7.2.
DISADVANTAGES OF PRIOR ART
Some of the disadvantages of the prior art are the following: The first group of disadvantages refers to the placement 5 and replacement of the electronic control unit.
As the electronic control unit (ECU) has three main functions, a failure may occur in either portion of the (ECU) carrying out any of the three functions. Whenever a failure occurs, the entire electronic control unit (ECU) 4 must be replaced.
Such failure may occur for various reasons, such as but not limited to electrical corrosion of the printed circuit board (PCB) 9, said electrical corrosion being one of the main reasons for failure affecting the electronic control units.
Electrical corrosion of the printed circuit board (PCB) 9 15 appears mostly as consequence of the short circuits inside semiconductors. Because of the generated heat, carbonization extends to all the layers of the printed circuit board (PCB) 9, whereas the burning continuing until the current is stopped. Experience shows that electrical corrosion affects more 20 frequently the part of the electronic control unit (ECU) operating the actuation valves since this part of the electronic control unit (ECU) is subject to higher intensity of the current than the part operating the modulator valves.
Since in the prior art is provided a single electronic control unit (ECU), in case of electrical corrosion, although only one portion of the electronic control unit (ECU) is affected, the entire electronic control unit (ECU) becomes out of order and thus needs to be totally replaced.
Replacing the entire electronic control unit (ECU) because of 30 electrical corrosion that disables only a part of it is a disadvantage in both terms of maintenance and costs.
The second group of disadvantages refers the large volume and weight of the valves support which in turn affects the volume and weight of the hydraulic electronic control unit (HECU).
The valves support is massive, requires a large piece of raw material, the hydraulic electronic control unit (ECU) including said valves support becomes also massive and heavy. As vehicles of the future will incorporate more and more electronics, there 5 is a constant increase of the number of components that must fit within the same space of the engine compartment. Massive and heavy valves support has thus the disadvantage of being difficult to fit in the engine compartment. Additionally, massive valves support makes difficult the replacement of the electronic control 10 unit (ECU). This inconvenient may be even larger having in view the increasing demand of the market for small vehicles, whose engine compartment is smaller.
PROBLEM SOLVED BY THE INVENTION
The problem solved by present invention is to provide a valves support for hydraulic electronic control unit (HECU) braking systems of reduced volume and weight that can facilitate the easy replacement of electronic control unit (ECU) in case of failure while reducing the risk of failure of said electronic control unit (ECU) due to electrical corrosion of the printed circuit board (PCB).
SUMMARY OF THE INVENTION
In a first aspect of the invention it is provided a valves 25 support for a hydraulic electronic control unit (HECU) braking system for accommodating various components of said braking system and enabling connections between them, said components including: an electrical motor having a motor shaft, means configured to generate hydraulic pressure inside the braking 30 system, said means being connected to said motor shaft, a plurality of actuation valves, a plurality of modulator valves. Said valves support has a substantially cuboidal shape having: a flat side configured for accommodating said electrical motor and for accommodating the means configured to generate hydraulic pressure inside the braking system and a stepped side opposite in respect to said flat side, said stepped side being configured in two steps shaping a thicker part and a thinner part, resulting the dual thickness valves support.
Said valves support has a first through bore for accommodating the motor shaft through said thicker part perpendicularly to said flat side.
Said thicker part of the stepped side of the valves support is configured for accommodating the plurality of actuation 10 valves, each actuation valve in a corresponding hole, in such a way to enable the positioning of said actuation valves parallelly with said motor shaft and opposite with regards to said flat side. Said thinner part of the stepped side of the valves support is configured for accommodating the plurality of modulator 15 valves, each modulator valve in a corresponding hole, in such a way to enable the positioning of said modulator valves parallel with said motor shaft and with said actuation valves, and opposite with regards to said flat side.
Said valves support is further configured for accommodating two electronic control units (ECU): an actuation electronic control unit (ECU), accommodated on said thicker part opposite to said flat side for operating said actuation valves and said electrical motor and a modulator electronic control unit (ECU) accommodated on said thinner part opposite to said flat side for operating said modulator valves.
In a second aspect of the invention it is provided a hydraulic electronic control unit (HECU) comprising a valves support according to the invention, an electrical motor having a motor shaft placed within said first through bore, said electrical motor being placed perpendicularly to said flat side of the valves support, and means configured to generate hydraulic pressure inside the braking system, said means being connected to said motor shaft.
The hydraulic electronic control unit (HECU) further comprises a plurality of actuation valves mounted on said thicker part of the stepped side of the valves support, opposite to said flat side, each actuation valve in a corresponding hole, and a plurality of modulator valves mounted on the thinner part of the stepped side of the valves support, opposite to said flat side each modulator valve in a corresponding hole.
The hydraulic electronic control unit (HECU) further comprises one actuation electronic control unit (ECU) mounted on said thicker part, and opposite with regards to said flat side, said actuation electronic control unit (ECU) being adapted to operate said actuation valves by means of an actuation printed circuit board (PCB), said actuation printed circuit board (PCB) being in contact with said actuation electronic control unit (ECU) on one side and with said actuation valves on the opposite side by means of coils, said actuation electronic control unit (ECU) being adapted to operate the electrical motor.
The hydraulic electronic control unit (HECU) further comprises one modulator electronic control unit (ECU) on said thinner part, and opposite with regards to said flat side, said actuation 20 electronic control unit (ECU) being adapted to operate said modulator valves by means of a modulator printed circuit board (PCB), said modulator printed circuit board (PCB) being in contact with said modulator electronic control unit (ECU) on one side and with said modulator valves on the opposite side by means 25 of coils.
In a third aspect of the invention it is provided a hydraulic electronic control unit (HECU) braking system comprising the hydraulic electronic control unit (HECU) according to the invention.
In a fourth aspect of the invention it is provided a method for producing the valves support of the invention by extrusion. In a fifth aspect of the invention it is provided a method for producing the valves support of the invention by machining using big diameter milling tools, preferably of 080mm.
ADVANTAGES OF THE INVENTION
By creating a valves support configured to accommodate two electronic control units (ECU) instead of a single one, the invention permits to replace only the electronic control unit (ECU) that is affected by the failure irrespective of the origin of the failure.
By creating a valves support configured to accommodate two electronic control units (ECU) on the stepped side, separated from one another by a portion of the valves support itself, the invention permits to limit the spread of the electrical corrosion from the printed circuit board (PCB) of the electronic control unit (ECU) where it originates to the other printed circuit board (PCB) of the other electronic control unit (ECU), thus lowering and limiting the risk of failure of both electronic control units (ECU) at least from the point of view of the electrical corrosion.
By creating a hydraulic electronic control unit (HECU) with two electronic control units (ECU) instead of one, it allows smaller volumes of each of the two electronic control units (ECU) in respect to the electronic control unit (ECU) used in the state of art, smaller size electronic control units (ECU) being easier to be placed and replaced in working position than larger size electronic control units (ECU).
By creating a dual thickness valves support instead of a massive essentially single thickness valves support, the volume and the weight of the valves support is reduced with up to 20% by eliminating a portion of material corresponding to the difference between the thicker part and the thinner part of the valves support.
By using a dual thickness valves support instead of a massive essentially single thickness valves support and by accommodating two electronic control units (ECU) instead of one, the volume and the weight of the hydraulic electronic control unit (HECU) according to the invention is reduced, which allows positioning of the braking system components within the engine compartment in a smaller place and weighting less as compared with prior art. The hydraulic electronic control unit (HECU) according to the invention has a further advantage of using the dual thickness 5 valves support that creates a free space. This space could either be used create an air buffer limiting the spread of electrical corrosion, or leaving it to be used by other component.
The method of manufacturing the valves support by extrusion has the advantage of easy manufacturing and cost reductions because of the almost full use of the raw material, due to the geometrical shape of the valves support, as well as reducing the manufacturing time.
Further features and advantages of the invention stems from the following description and the claims with reference to the 15 accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will be hereafter described with reference to the drawings where: -Fig.1 illustrates the hydraulic electronic control unit (HECU) from the state of the art, in working position; -Fig. 2 illustrates a detail of a valves support from the state of the art showing the hydraulic valves in assembled state; -Fig. 3 shows the hydraulic electronic control unit (HECU) 25 from the state of the art, in exploded view: * Fig. 3a) is the representation from electronic control unit (ECU) side to enable visibility of the valves; * Fig. 3b) is LhereoresehLabionfrbmbheelecLricalmoLor side, in exploded view, of the electronic control unit (ECU) to enable visibility of the coils; Fig. 4 illustrates a detailed view of the electronic control unit (ECU) from the state of the art, in exploded view, so as to enable the visibility of the coils and printed circuit board (FOB) and the plastic cover of the electronic control unit (ECU); Fig. 5 illustrates the outer shape of the valves support from the prior art; Fig. 6 illustrates the outer shape of the of the valves support according to the invention; Fig. 7 shows the valves support according to the invention, including two printed circuit boards (PCB) and two electronic control units (FCU); -Fig. 8 shows the difference of thickness between the thicker part and the thinner part of the valves support according to a preferred embodiment of the invention; Fig. 9 shows the valves support according to another preferred embodiment, in perspective view, from two lateral views showing the thicker and thinner parts and the holes where the valves are accommodated, as well as the geometry of the valves support; - Fig.10 illustrates a (HECU) braking system including the valves support according to another preferred embodiment: * Fig. 10a) in exploded view; * Fig. 10b) in assembled state, in working position.
List of references in the drawings: 1 Brake fluid reservoir; 2 Electrical motor; 2.1 Motor shaft of the electrical motor; 3 Valves support from the state of the art; Valves support according to the invention; 30.1 Thicker part of the valves support 30; 30.2 Thinner part of the valves support 30; 30a Flat side of the valves support 30 configured to accommodate the electrical motor 2; 30b Stepped side of the valves support 30, opposite to flat side 30a; 30b.1, 30b.2, 30b.3 Sides of the stepped side 30b; 30c Lateral side of the valves support 30; 4 Electronic control unit (ECU) from the state of the art; 40.1 Actuation electronic control unit (ECU) according to the invention; 40.2 Modulator electronic control unit (ECU) according to the invention; First through bore for accommodating the motor shaft 2.1; 6 Substantially cuboidal space resulting from the difference of thickness between the thicker part 30.1 and the thinner part 30.2 of the valves support 30; 7.1 Plurality of actuation valves accommodated in the valves support 30; 7.1.1 Holes for accommodating the plurality of actuation valves 7.1 in the valves support 30; 7.2 Plurality of modulator valves accommodated in the valves support 30; 7.2.1 Holes for accommodating the plurality of modulator valves 7.2 in the valves support 30; 8 Piston; 8.1 Piston housing; 8.1.1. Second bore for accommodating the piston housing 8.1; 9 Printed Circuit Board (PCB) of electronic control unit (ECU) 4 from state of the art; 9.1 Plastic cover of electronic control unit (ECU) 4; 90.1 Actuation printed circuit board (PCB) of actuation electronic control unit (ECU) 40.1; 90.2 Modulator printed circuit board (PCB) of modulator electronic control unit (ECU) 40.2; Coils; 11 Linear actuator assembly (LAC); 12 Gear mechanism; 13 Magnet for positioning the electrical motor 2; 14 Pedal feel simulator (PFS); 14.1 Third bore for accommodating the pedal feel simulator (PFS) 14; 15 Tandem master cylinder (TMC); 15.1 Fourth bore for accommodating the tandem master cylinder (TMC) 15; 16 Housing of electrical motor 2 and linear actuator assembly (LAC) 11.
DETAILED DESCRIPTION
The inventui, ;^t to separate some of the funcLions of the elect=nic control unit (ECU) of the state of art for the purpose of limiting the effects of failure and in particular the failuxe due to electrical c=rosion of the priAnted circuit board of the electronic control unit by accommodatng twr, electronic control units (FM instead of one and by separating said two elect=ic control units (ECU) f-rom one another while avoiding the need to use two separate valves supports, one for each of the two electronc control units (ECU) The inventors conceived a valves support 30 for a hydraulic electronic control unit (HECU) braking system for accommodating various components and enabling connections between them, such as an electrical motor 2 having a motor shaft 2.1, a plurality of actuation valves 7.1, a plurality of modulator valves 7.2, two electronic control units (ECU) 40.1, 40.2, a pedal feel simulator (PFS) 14, tandem master cylinder (INC) 15, as well as other components.
The valves support 30 as seen in Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Fig. 10 has a substantially cuboidal shape having a flat side 30a configured for accommodating the electrical motor 2 and for accommodating the means configured to generate hydraulic pressure inside the braking system. The valves support 30 has a stepped side 30b opposite in respect to the flat side 30a, configured for accommodating the actuation valves 7.1 and the modulator valves 7.2. The number of actuation valves 7.1 depends on the configuration of each vehicle, whereas the number of modulator valves 7.2 is typically 8.
As seen in Fig. 6, the stepped side 30b is configured in two steps, shaping a thicker part 30.1 and a thinner part 30.2 of the valves support 30 with three sides 30b.1, 30b.2 and 30b.3. The dual thickness shape of the valves support 30 according to invention results from taking out from the valves support 3 of the state of the art of a smaller volume of substantially cuboidal shape having between 10 and 20% inclusively of the initial volume of the valves support 3 of the state of the art.
By taking out a volume between 10 and 20% inclusively from the 15 volume of the valves support 3 of the state of art, both the volume and the weight of the valves support 30 according to the invention are reduced with up to 20r.
The valves support 30 according to the invention may have on each of the sides small cavities or protrusions as compared with the size of the holes 7.1.1 and 7.2.1, said cavities or protrusions being necessary for a better accommodation or connection of various components.
As seen in Fig. 9a), Fig. 9b) and Fig.10, the valves support 30 has a first through bore 5 for accommodating the motor shaft 25 2.1. The first through bore 5 is positioned in the thicker part 30.1, perpendicularly on the flat side 30a.
As seen in Fig. 9a) and Fig. 9b), said thicker part 30.1 of the valves support 30 is further configured for accommodating the actuation valves 7.1, each actuation valve 7.1 in a corresponding hole 7.1.1 positioned parallelly with said motor shaft 2.1 and opposite with regards to said flat side 30a. The position of the plurality of holes 7.1.1 for the plurality of actuation valves 7.1 is shown in Fig. 9b) whereas the actuation valves 7.1 are not represented graphically, for simplicity reasons.
As seen in Fig. 9a) and Fig. 9b), said thinner part 30.2 of the valves support 30 is configured for accommodating the modulator valves 7.2, each of the modulator valves 7.2 being accommodated in a corresponding hole 7.2.1 and each of said hole 5 7. 2. 1 being positioned parallel with said motor shaft 2. 1 and with said actuation valves 7.1, and opposite with regards to said flat side 30a. The position of the plurality of holes 7.2.1 for the plurality of modulator valves 7.2 is shown in Fig. 9b) whereas the modulator valves 7.2 are not represented graphically, for 10 simplicity reasons.
The choice to accommodate the actuation valves 7.1 on the thicker part 30.1 of the valves support 30 is driven by the fact that the depth of the holes 7.1.1 of the valves support 33 in which the actuation valves 7.1 are accommodated is on average with 35-40% higher than the depth of the holes 7.2.1 of the valves support 30 in which the modulator valves 7.2 are accommodated.
The thicker part 30.1 of the valves support 30 is with 25 to 28% thicker than the thinner part 30.2 of the valves support 30. The difference of thickness between the two parts-25 to 28' must be smaller than the difference between the depth of the holes 7.1.1 and 7.2.1, respectively 35-40J, as the holes are not passing completely from one side to another of the thicker part 30.1 respectively thinner part 30.2 of the valves support.
With reference to Fig. 7, two electronic control units (ECU) 25 40.1 and 40.2 that carry out the functions of the electronic control unit 4 from the state of the art are accommodated on the stepped side 30b. The first is an actuation electronic control unit (ECU) 40.1, accommodated on the side 30b.1 of said thicker part 30.1, opposite to said flat side 30a, for operating said 30 actuation valves 7.1 and for operating the electrical motor 2. The second is a modulator electronic control unit (ECU) 40.2, accommodated on the side 30b.3 said thinner part 30.2, opposite to said flat side 30a, for operating said modulator valves 7.2. The plurality of actuation valves 7.1 and, respectively, modulator valves 7.2 is operated by means of coils 10 integrated inside the respective electronic control units (ECU) 40.1 and 40.2, said coils 10 being placed on a corresponding actuation printed circuit board (PCB) 90.1 and on a corresponding modulator 5 printed circuit board (PCB) 90.2 of each of the two electronic control units (ECU) 40.1 and 40.2. Thus, the thicker part 30.1 accommodating the plurality of actuation valves 7.1 is in contact with a corresponding actuation printed circuit board (PCB) 90.1, while the thinner part 30.2 accommodating the modulator valves 10 7.2 is in contact with a corresponding modulator printed circuit board (PCB) 90.2 by means of coils 10, as seen in Fig. 7.
Both the actuation printed circuit board (PCB) 90.1 and the modulator printed circuit board (PCB) 90.2 are integrated within the respective electronic control units (ECU), namely the actuation printed circuit board (PCB) 90.1 is integrated in the actuation electronic control unit (ECU) 40.1 and the modulator printed circuit board (PCB) 90.2 is integrated in the modulator electronic control unit (ECU) 40.2.
As seen in Fig. 6 and Fig. 7, the two electronic control units (ECU) 40.1 and 40.2 with their respective printed circuit boards (PCBs) 90.1 and 90.2 are completely separated from one another by the valves support 30, specifically by the side 30b.2 of the valves support 30.
The mechanical separation of the electronic control units (ECU) 40.1 and 40.2 is advantageous because, in case that electrical corrosion appears, it permits to limit the spread of the electrical corrosion from the printed circuit board (PCB) of the electronic control unit (ECU) where it originates to the other printed circuit board (PCB) of the other electronic control unit (ECU), thus lowers the risk of failure as only one of the two electronic control units (ECU) 40.1 or 40.2 namely the one from where electrical corrosion originates will need replacement and not both electronic control units 40.1 and 40.2. The separation of the electronic control units (ECU) 40.1 and 40.2 leads to another advantage of the valves support 30 according to the invention, namely that it permits easier placement, replacement and individual testing of any of the two electronic control units (ECU) 40.1 and 40.2 as compared with the prior art, no matter what the reason of the placement, replacement or testing is.
By using two electronic control units (ECU) 40.1 and 40.2 instead of one electronic control unit (ECU) 4 used in the state of art, the size of each of them is reduced in respect to the size of the electronic control unit (ECU) 4 used in the state of art.
Smaller size electronic control units (ECU) are easier to be placed and replaced in working position than larger size electronic control units (ECU).
The dual thickness of the valves support 30 according to the invention has an additional advantage of creating a substantially cuboidal space 6, as seen in Fig. 7, further referred as free space, in contact with the cover of the second electronic control unit 40.2, corresponding to the difference of thickness between the thicker part 30.1 and the thinner part 30.2. Depending on the configuration of each vehicle, the free space 6 may be used for example as an additional air buffer to limit the heat that favours the spread of electrical corrosion of the printed circuit boards (PCB) of any of the two electronic control units (ECU) 40.1, 40.2., thus contributing to lowering the risk of failure of any of the two electronic control units (ECU) 40.1, 40.2. Yet another possibility of use of the free space 6 is to place another component that needs to be accommodated within the engine compartment, which is also an advantage given the space constraints of the engine compartment.
According to a preferred embodiment shown in Fic. 8, the difference of thickness between the thicker part 30.1 and the thinner part 30.2 of said valves support 30 is preferably comprised in the closed interval from 12 tol5 mm, and more preferably is of 13 mm.
This leads to a volume and weight reduction with 10-20, of the valves support 30 according to this preferred embodiment as compared with the valves support 3 of the prior art. According to another preferred embodiment shown in Fig. 9a) and Fig. 9b) , the valves support 30 further comprises three other 5 bores necessary to accommodate other components of the braking system: a piston housing 8.1 for the piston 8, a pedal feel simulator (PFS) 14 and a tandem master cylinder (TMC) 15. The other three bores are the following: -a second bore 8.1.1 opening on the flat side 30a for accommodating within the thicker part 30.1 of the valves support 30 a piston housing 8.1 in such a way to be parallel with the first through bore 5 of the motor shaft 2.1; -a third bore 14.1 opening on the flat side 30a for accommodating a pedal feel simulator (PFS) 14 within the thinner part 30.2 of the valves support 30 in such a way to be parallel with the first through bore 5 of the motor shaft 2.1; -a fourth bore 15.1 opening on a lateral side 30c of the valves support 30, said lateral side 30c, being perpendicular to said flat side 30a and said stepped side 30b, said fourth bore 15.1 being configured for accommodating a tancem master cylinder (TMC) 15 within the thicker part 30.1 of the valves support 30 in such a way to be perpendicular to the first through bore 5, and positioned in a plane situated below the said first through bore 5.
The piston 8 and the piston housing 8.1 are components of an example means for generate hydraulic pressure inside the braking system. The specific means for creating pressure inside the hydraulic electronic control unit (HECU) braking system are formed in this case by a gear mechanism 12 and a linear actuator assembly (LAC) 11 comprising a ball screw drive (BSD) assembly, the piston 8 and its piston housing 8.1, said linear actuator assembly (LAC) 11, being mounted inside the valves support parallel with the motor shaft 2.1.
The valves support 30 may be used in a hydraulic electronic control unit (HECU) in order to accommodate and to provide connections of various components of said hydraulic electronic 5 control unit (HECU) including a brake fluid reservoir 1 placed on the upper part of the valves support 30, in hydraulic connection with said valves support 30, the electrical motor 2 with its motor shaft 2.1 within said first through bore, said electrical motor 2 being placed perpendicularly to said flat side 10 30a of the valves support 30, and means configured to generate hydraulic pressure inside the braking system, said means being connected to said motor shaft 2.1.
The hydraulic electronic control unit (HECU) further comprises a plurality of actuation valves 7.1 accommodated on said thicker part 30.1 of said valves support 30, opposite to said flat side 30a, each actuation valve 7.1 being placed in a corresponding hole 7.1.1, and a plurality of modulator valves 7.2, accommodated on said thinner part 30.2 of said valves support 30, opposite to said flat side 30a, each modulator valve 7.2 being placed in a corresponding hole 7.2.1.
The hydraulic electronic control unit (HECU) further comprises one actuation electronic control unit (ECU) 40.1, accommodated on the thicker part 30.1 opposite with regards to said flat side 30a, the actuation electronic control unit (ECU) 40.1 being adapted to operate said actuation valves 7.1 by means of an actuation printed circuit board (PCB) 90.1, said actuation printed circuit board (PCB) 90.1 being in contact with said actuation electronic control unit (ECU) 40.1 on one side and with said actuation valves 7.1 on the opposite side, the actuation electronic control unit (ECU) 40.1 being adapted to operate the electrical motor 2.
The modulator electronic control unit (ECU) 40.2 is accommodated on the thinner part 30.2, and opposite with regards to said flat side 30a being adapted to operate said modulator valves 7.2 by means of a modulator printed circuit board (PCB) 90.2, said modulator printed circuit board (PCB) 90.2 being in contact with said modulator electronic control unit (ECU) 40.2 on one side and with said modulator valves 7.2 on the opposite side by means of coils 10.
By using the valves supporu configured to accommodate two electronic control units (ECU) 40.1, 40.2, instead of a single one, said two electronic control units (ECU) 40.1, 40.2, separated from one another according to their function, the hydraulic electronic control unit (HECU) according to the invention has the advantage of being more efficient as compared with the one of prior art, as placement and replacement occurs only for the electronic control unit (ECU) affected by failure, irrespective of the reason of the failure.
The hydraulic electronic control unit (HECU) according to the invention has the advantage of being safer because, by separating the two electronic control units (ECU) when placing them on different sides of the valves support, it helps lowering the risk of failure at least from the point of view of electrical corrosion.
By using the dual thickness valves support instead of a massive essentially single thickness valves support and by accommodating two electronic control units (ECU) instead of one, the volume and the weight of the hydraulic electronic control unit (HECU) according to the invention is reduced with up to 20, which allows positioning of the components within the engine compartment in a smaller place and weighting less as compared with prior art.
The hydraulic electronic control unit (HECU) according to the invention has a further advantage of using the dual thickness valves support that allows the existence of the free space 6, depending on the choice of use of said free space 6, of either creating an air buffer limiting the spread of electrical corrosion, or leaving the space to be used by other component.
One example of a hydraulic electronic control unit (HECU) according to the invention, which shall not be considered as limiting the scope of the invention as defined by the attached claims, is illustrated in Fig. 10a) and 10b) . The hydraulic electronic control unit (HECU) comprises the valves support 30 according to an embodiment of the invention as illustrated in Fig. 9a) and 9b) , a brake fluid reservoir 1 placed on the upper part of the valves support 30, in hydraulic connection with said valves support 30, the electrical motor 2 with its motor shaft 2.1 placed within the first through bore 5, perpendicularly to flat side 30a of the valves support 30, a magnet 13 and a corresponding sensing element for positioning said first electrical motor 2, said magnet 13 being mounted directly on the end of said first motor shaft 2.1, means for creating pressure inside the hydraulic electronic control unit (HECU) braking system, a pedal feel simulator (PFS) 14, and a tandem master cylinder (TMC) 15.
The specific means for creating pressure inside the hydraulic electronic control unit (HECU) braking system are formed in this case by the linear actuator assembly (LAC) 11 and the gear mechanism 12, said gear mechanism 12 being connected to the motor shaft 2.1 and shall be considered for a better illustration of the hydraulic electronic control unit (HECU) according to this preferred embodiment and not for limiting the scope of the invention.
The linear actuator assembly (LAC) 11 comprises a ball screw drive (BSD) assembly connected to the piston 8 sliding within its piston housing 8.1 mounted inside the valves support, parallel with the motor shaft 2.1. The linear actuator assembly (LAC) 11 and the electrical motor 2 are covered by a housing 16 mounted on said flat side 30a of the valves support 30.
The transmission of the rotation movement from the motor shaft 2.1 of the electrical motor 2 to the ball screw drive (BSD) assembly is made by means of the gear mechanism 12 connected to the motor shaft 2.1 of the electrical motor 2. The ball screw drive (BSD) assembly converts the rotation movement of the motor shaft 2.1 into linear movement of the piston 8 sliding within the piston housing 8.1 mounted into the second bore 8.1.1, thus creating pressure inside the hydraulic electronic control unit (HECU) braking system.
The hydraulic electronic control unit (HECU) further comprises a plurality of actuation valves 7.1 accommodated on said thicker part 30.1 of said valves support 30, opposite to said flat side 30a, each actuation valve 7.1 being placed in a corresponding hole 7.1.1, and a plurality of modulator valves 7.2, accommodated on said thinner part 30.2 of said valves support 30, opposite to said flat side 30a, each modulator valve 7.2 being placed in a corresponding hole 7.2.1.
For simplicity reasons, Fig. 10a) shows only a part of the plurality of holes 7.1.1 and respectively 7.2.1.
The hydraulic electronic control unit (HECU) further comprises one actuation electronic control unit (ECU) 40.1, accommodated on the thicker part 30.1 opposite with regards to said flat side 30a, the actuation electronic control unit (ECU) 40.1 being adapted to operate said actuation valves 7.1 by means of an actuation printed circuit board (PCB) 90.1, said actuation printed circuit board (PCB) 90.1 being in contact with said actuation electronic control unit (ECU) 40.1 on one side and with said actuation valves 7.1 on the opposite side, the actuation electronic control unit (ECU) 40.1 being adapted to operate the electrical motor 2.
The modulator electronic control unit (ECU) 40.2 is accommodated on the thinner part 30.2, and opposite with regards to said flat side 30a being adapted to operate said modulator valves 7.2 by means of a modulator printed circuit board (PCB) 90.2, said modulator printed circuit board (PCB) 90.2 being in contact with said modulator electronic control unit (ECU) 40.2 on one side and with said modulator valves 7.2 on the opposite side by means of coils 10.
A magnet 13 for positioning said electrical motor 2 is placed directly on the end of the motor shaft 2.1, which is positioned towards the actuation electronic control unit (ECU) 40.1, such as to spin inside the actuation electronic control unit (ECU) 40.1, in front of a sensing element, which is mounted directly on the corresponding actuation printed circuit board (PCB) 90.1 surface, said sensing element being configured to record the precise positioning of the motor shaft 2.1 of the electrical motor 2.
The pedal feel simulator (PFS) 14 is mounted on the flat side 30a of the valve support 30, below the electrical motor 2 within the third bore 14.1. The pedal feel simulator (PFS) 14 is used in the hydraulic electronic control unit (HECU) to reproduce the natural felling of pressing the breaking pedal. The tandem master cylinder (TMC) 15, is mounted on the lateral side 30c of the valves support 30, within the fourth bore 15.1 perpendicularly in respect to both stepped side 30b, and flat side 30a. The tandem master cylinder (TMC) 15 converts the pressure applied by the driver's foot into hydraulic pressure.
The valves support 30 according to the invention may be 20 included in a hydraulic electronic control unit HECU braking system comprising the hydraulic electronic control unit HECU according to the invention.
All the advantages of the hydraulic electronic control unit (HECU) according to the invention apply equally to the hydraulic 25 electronic control unit (HECU) braking system.
In other aspects, the invention provides for two alternative methods for producing the valves support 30.
One of the alternative methods of producing valves support 30 is by extrusion process from a raw piece of material. This method has the advantage of easy manufacturing and cost reductions because of the almost full use of the raw material, due to the geometrical shape of the valves support, as well as reducing the manufacturing time.
The invention also provides an alternative method of oroducing the valves support 30 by machining, using big diameter milling tools, preferably of 080mm.
The preferred embodiments have been shown and described for the purposes of illustrating the structural and functional principles of the present invention, as well as illustrating the methods of employing the preferred embodiments and are subject to change without departing from such principles. Therefore, this invention includes all modifications encompassed within the spirit of the following claims.

Claims (8)

  1. Patent claims 1. A valves support (30) for a hydraulic electronic control unit (HECU) braking system for accommodating various components of said braking system and enabling connections between them, said components including: - an electrical motor (2) having a motor shaft (2.1); - means configured to generate hydraulic pressure inside the braking system, said means being connected to said motor shaft (2.1); - a plurality of electro-mechanical actuation valves (7.1); - a plurality of electro-mechanical modulator valves (7.2); characterized in that -said valves support (30) has a substantially cuboidal shape having: * a flat side (30a) configured for accommodating said electrical motor (2) and for accommodating the means configured to generate hydraulic pressure inside the braking system; * a stepped side (30b) opposite in respect to said flat side (30a), said stepped side (30b) being configured in two steps shaping a thicker part (30.1) and a thinner part (30.2), resulting a dual thickness valves support; -said valves support (30) has a first through bore (5) for accommodating the motor shaft (2.1) through said thicker part (30.1) perpendicularly to said flat side (30a); -said thicker part (30.1) of said stepped side (30b) of the valves support (30) being configured for accommodating the plurality of actuation valves (7.1), each actuation valve (7.1) in a corresponding hole (7.1.1) in such a way to enable the positioning of said actuation valves (7.1) parallelly with said motor shaft (2.1) and opposite with regards to said flat side (30a); -said thinner part (30.2) of said stepped side (30b) of the valves support (30) being configured for accommodating the plurality of modulator valves (7.2), each modulator valve (7.2) in a corresponding hole (7.2.1) in such a way to enable the positioning of said modulator valves (7.2) parallelly with said motor shaft (2.1) and with said actuation valves (7.1), and opposite with regards to said flat side (30a); -said valves support (30) is further configured for accommodating two electronic control units (ECU): * an actuation electronic control unit (ECU) (40.1), accommodated on said thicker part (30.1) opposite to said flat side (30a) for operating said actuation valves (7.1) and said electrical motor (2); * a modulator electronic control unit (ECU) (40.2) accommodated on said thinnerpart (30.2) opposite to said flat side (30a) for operating said modulator valves (7.2).
  2. 2. Valves support (30) according to claim 1, wherein said valves support (30) has the difference of thickness between said thicker and thinner parts (30.1, 30.2) preferably comprised in the closed interval from 12 tol5 mm, and more preferably of 13 mm.
  3. 3.Valves support (30) according to any preceding claims, wherein said valves support (30) further comprises: -a second bore (8.1.1) opening on the flat side (30a) for accommodating within the thicker part (30.1) of the valves support (30) a piston housing 8.1 in such away to be parallel with the first through bore (5) of said motor shaft (2.1); -a third bore (14.1) opening on the flat side (30a) for accommodating a pedal feel simulator (PFS) (14) within the thinner part (30.2) of the valves support (30) in such away to be parallel with the first through bore (5) of said motor shaft (2.1); -a fourth bore (15.1) opening on a lateral side (30c) of the valves support (30), said lateral side (30c), being perpendicular to said flat side (30a) and said stepped side (30b) for accommodating a tandem master cylinder (TMC) (15) within the thinner part (30.2) of the valves support (30) in such a way to be perpendicular to the first through bore (5) of said motor shaft (2.1).
  4. 4. Hydraulic electronic control unit (HECU) comprising a valves support (30) according to any of the preceding claims further comprising: -a brake fluid reservoir 1 placed on the upper part of the valves support 30, in hydraulic connection with said valves support 30; -an electrical motor (2) having a motor shaft (2.1) within said first through bore (5), said electrical motor (2) being placed perpendicularly to said flat side (30a) of the valves support (30); -means configured to generate hydraulic pressure inside the braking system, said means being connected to the motor shaft (2.1); -a plurality of actuation valves (7.1) mounted on said thicker part (30.1) of said stepped side (30b) of valves support (30), opposite to said flat side (30a), each actuation valve (7.1) in a corresponding hole (7.1.1); -a plurality of modulator valves (7.2) is mounted on said thinner part (30.2) of said stepped side (30b) of valves support (30) , opposite to said flat side (30a) each modulator valve (7.2) in a corresponding hole (7.2.1); -one actuation electronic control unit (ECU) (40.1) mounted on said thicker part (30.1) opposite with regards to said flat side (30a), said actuation electronic control unit (ECU) (40.1) being adapted to operate said actuation valves (7.1) by means of an actuation printed circuit board (PCB) (90.1), said actuation printed circuit board (PCB) (90.1) being in contact with said actuation electronic control unit (ECU) (40.1) on one side and with said actuation valves (7.1) on the opposite side by means of coils (10), and said actuation electronic control unit (ECJ) (40.1) being adapted to operate the electrical motor (2); -one modulator electronic control unit (ECU) (40.2) on said thinner part (30.2), and opposite with regards to said flat side (30a), said modulator electronic control unit (ECU) (40.2) being adapted to operate said modulator valves (7.2) by means of a modulator printed circuit board (PCB) (90.2), said modulator printed circuit board (PCB) (90.2) being in contact with said modulator electronic control unit (ECU) (40.2) on one side and with said modulator valves (7.2) on the opposite side by means of coils (10).
  5. 5. Hydraulic electronic control unit (HECU) according to claim 4 further comprising: -a pedal feel simulator (PFS) (14) placed in its entirety inside the third bore (14.1) of the valves support (30), said a pedal feel simulator (14) being parallelly positioned in respect to said first through bore (5) within the valves support (30) in a parallel horizontal plane below the plane of said first through bore (5); -a tandem master cylinder (TMC) (15) placed inside the fourth bore (15.1) of the valves support (30), said tandem master cylinder (TMC) (8) being positioned on a side, perpendicular in respect to the flat side (30a), placed perpendicularly in respect to the first through bore (5) in a parallel horizontal plane below the plane of said first through bore (5) when valves support (30) in working position; -a magnet (13) and a corresponding sensing element for positioning said first electrical motor (2) mounted directly on the end of said first motor shaft (2.1) such as to be connected with the modulator electronic control unit (ECU) (40.2).
  6. 6. Hydraulic electronic control unit (HECU) braking system comprising hydraulic electronic control unit (HECU) according to the preceding claim.
  7. 7. Method for producing a valves support (30) according to any of the claims 1 to 3, wherein said valves support (30) is produced by extrusion.
  8. 8. Method for producing a valves support (30) according to any of the claims 1 to 3, wherein said valves support (30) is produced by machining using big diameter milling tools, preferably of 080mm.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230331208A1 (en) * 2020-09-29 2023-10-19 Advics Co., Ltd. Brake fluid pressure control apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018054864A1 (en) * 2016-09-21 2018-03-29 Continental Teves Ag & Co. Ohg Electrohydraulic motor vehicle control device
DE102017212016A1 (en) * 2017-07-13 2019-01-17 Continental Teves Ag & Co. Ohg Modular electrohydraulic brake confirmation device for a motor vehicle brake system
WO2019145829A1 (en) * 2018-01-26 2019-08-01 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018054864A1 (en) * 2016-09-21 2018-03-29 Continental Teves Ag & Co. Ohg Electrohydraulic motor vehicle control device
DE102017212016A1 (en) * 2017-07-13 2019-01-17 Continental Teves Ag & Co. Ohg Modular electrohydraulic brake confirmation device for a motor vehicle brake system
WO2019145829A1 (en) * 2018-01-26 2019-08-01 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング Brake fluid pressure control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230331208A1 (en) * 2020-09-29 2023-10-19 Advics Co., Ltd. Brake fluid pressure control apparatus

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