Hydro-pneumatic suspension systems: faster and … 3_Waldir...ES / Bauer / Oct2013 ARGO-HYTOS IGM...
Transcript of Hydro-pneumatic suspension systems: faster and … 3_Waldir...ES / Bauer / Oct2013 ARGO-HYTOS IGM...
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 1
Hydro-pneumatic suspension systems:
faster and more cost-effective development
2nd Workshop on Innovative Engineering for Fluid Power:
WIEPF 2014
Eng. Waldir Vianna JuniorARGO-HYTOS AT FLUID POWER SYSTEMS LTDA
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 2
MHPSOverview
�Hydropneumatic Suspensions today
�The MHPS Concept
�Implementation of the Modular System
�First Tests
m
�Possible Applications
�ARGO-HYTOS suspension competence
�Typical project schedule
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 1
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 3
MHPSARGO HYTOS
ARGO-HYTOS Facts
Turnover: approx. 130 Mio. EUR
Employees: approx. 1,200 worldwide
Sales: own sales organizations &worldwide representatives
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 2
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 4
MHPSARGO HYTOS
Production and distribution companies Distribution partnersDistribution companies ( planned)
North America
South America
Europe
Asia
Africa
Australia
Canada
Mexico
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 3
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 5
MHPSARGO HYTOS
ARGO-HYTOS supplies its product portfolio into the following markets...
� Agriculture / Farming 25 %
� Construction Equipment 20 %
� Lifting / Material Handling 15 %
� Other Mobile Vehicles 15 %
� Plastic Injection Molding 5 %
� Machine Tool Equipment 5 %
� Other Industrial Applications 15 %
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 4
We produce fluid power solutionsVS / Bauer / 06Sep2012 GEM MHPS / page 6 of 9
MHPSHydropneumatic Suspensions today
� Used mainly in high volume / high spec applications
�Slow expansion to mid and low volume applications
(even though 2002/44/EC creates an increasing need for suspensions)
�Additional shortcoming: long development times
hurdle: high development costs
Quelle: AGCO Fendt Quelle: Volvo
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 5
We produce fluid power solutionsVS / Bauer / 06Sep2012 GEM MHPS / page 7 of 9
MHPSThe MHPS concept - Goals
� Provide to the market a
Standard, quickly available hydropneumatic suspension control system
(hydraulics and electronics)
� Offer full support and system responsibility
� This can be achieved by a modular concept
� Customization of this system must be easily possible
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 6
We produce fluid power solutionsVS / Bauer / 06Sep2012 GEM MHPS / page 8 of 9
MHPSThe MHPS concept - Advantages
� Fast reaction time to customer requests, prototypes quickly available
� Standardized modules for small quantity OEM serial production
� Customized HICs (derived from the modular prototype setup)
for large quantities and/or special design-space requirements
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 7
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 9
MHPSThe MHPS concept - Overview
CAN bus
Sensors
and
signals
Vehicle
Electric
supply
Hydraulic
supply
S
Controller
User
Interface
Hydraulic
control
block
LV
BDV
MHPS
Hydraulic Control
Block
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 8
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 10
MHPSImplementation of the Modular System Hydraulics
m
Piston-side Module
Damping + shut-off control
Rod-side Module
Spring rate control
Basic Module
Level control
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 9
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 11
MHPSImplementation of the Modular System Hydraulics
Examples of module combinations
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 10
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 12
MHPSImplementation of the Modular System Electronics
Controller
User Interface
Sensors
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 11
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 13
MHPSImplementation of the Modular System
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 12
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 14
MHPSInitial Tests Rodside pressure control
Originally intended
characteristic curve
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 13
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 15
Results of simulation
MHPSInitial Tests Rodside pressure control
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 14
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 16
Lab test result
MHPSInitial Tests Rodside pressure control
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 15
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 17
MHPSInitial Tests Vehicle Test
Intention of the test
First start-up of the overall MHPS-System on a vehicle
Testing of the calibration procedure and position control
Test vehicle
John Deere 6910 with TLS
and LS-Hydraulics,
MHPS connected via a
selective control valve
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 16
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 18
MHPSPossible Applications
e.g. in:
� Agricultural machinery: tractors, self-propelled agricultural machines, telescopic handlers, heavy trailers
� Construction machinery: mobile/truck cranes, dumpers, backhoe loaders, wheel loader, mobile excavator
� Industrial trucks: port and airport transporters, forklifts
� Communal machinery: multi-purpose vehicles (e.g. Holder, Unimog), sweepers and mowers
� Special vehicles: heavy goods trucks, forestry machines
� axles or wheels
� (operator‘s) cabins
� booms and cargo load
Suspensions for
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 17
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 19
Competence in HP SuspensionsARGO-HYTOS approach
- Responsibility for the development of the hydraulic suspension controls
- Responsibility or technical support for the configuration and optimization of thehydraulic suspension system (accumulators, cylinders, electronics/algorithms)
- Responsibility or advice and guidance during vehicle tests especially for finding the right
set of parameters of the hydraulic system and the electronic control
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 18
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 20
- Dedicated calculation tools for the first, basic layout
(Force vs. displacement, spring rate vs. axle load, accumulator limits, etc.)
- Simulation of electronically controlled hydraulic systems , Software: DSHplus
(simulation of suspension load changes according to real applications, virtual ground
excitations according to customer demands or standard ISO-profile)
Competence in HP SuspensionsDevelopment tools
- Hardware in the loop testing
(DSHplus as virtual environment connec-
ted via USB-Profibus adapter and WAGO
Profibus system to the tested hardware)
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 19
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 21
- Load simulator
(static load variation on real suspension cylinders + accumulators)
- Suspension tuning testbench(dynamic load variation, finding
the optimum set of parameters
for spring rate and damping
control)
Competence in HP SuspensionsTesting
- Mobile hydraulic measurement and data recording equipment (max. 20 channels,
max. 10kHz) and evaluation with dedicated software (NI Diadem)
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 20
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 22
Project steps:
Competence in HP SuspensionsTypical suspension project schedule
6. In case of special design space restrictions or for further cost reduction,
customer-specific control blocks can be derived from the modular setup using
exactly the same components as in the prototype
5. Systems with this setup can then already be used as a serial solution
4. In real test drives on the vehicle, the system can be optimized
3. This prototype setup can then be tested and adjusted in the lab with the
ARGO-HYTOS load simulator test according to customers specifications
2. The prototype system is set up with the selected modules and preadjusted
according to the calculated values
1. In consultation with the customer, ARGO-HYTOS defines and lays out the
suspension system using dedicated calculation and simulation tools
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 21
We produce fluid power solutionsES / Bauer / Oct2013 ARGO-HYTOS IGM 2013, Seite 23
MHPSAgritechnica
MHPS demonstrator shown at the ARGO-HYTOS booth (Hall1 / D116)
AHBR/WV/02Sep2014 WIEPF 2014 – MHPS – pag. 22
Thank you for your attention