R&D Vehicle Systems LtdR&D Vehicle Components Ltd

Business Presentation

RDVS OverviewRDVS is an electrical engineering consultancy focused on the design, and integration of vehicle electrical systems.

We cover all the main automotive fields including mainstream, EV/HEV, commercial and military vehicles.

Core Skills• Vehicle integration activities

including programme/supplier management

• Vehicle architecture design• EDS design, modelling & testing• Harness prototype manufacturing• CAN system design & testing• Very strong electric vehicle skill-set

RDVC - OverviewRDVC is a specialist electronic component design consultancy focused on the design and manufacture of niche electrical components.

We cover everything from standard low voltage automotive components to high current / high voltage components for electric vehicles.

Core Skills• Bespoke electronic / electrical

component design• Bespoke software design• Bespoke mechanical design• Low / high voltage designs• HV power distribution, control &

measurement• DC/DC converters• Industry leading EV skill-set• Excellent prototyping capability• Low / medium volume manufacturing

ResourcesWe have the following resources on‐site:• Vector Canoe, Canalyser, CANdela, 

CANdiva• Matlab, Simulink, Stateflow and 

Embedded Workshop• CATIA V5• AutoCAD• Vesys Design• Altium Designer, EasyPCB• Harness prototyping workshop• Electrical / electronics manufacturing• Electronics development and testing 

laboratory – HV & LV• 6kV DC insulation / isolation test 

facilities• EMC development test equipment• Vehicle workshop

Vehicle Integration & System Design

Vehicle system design and integration is a core RDVS skill. We have successfully delivered vehicle designs including production electric vehicles, military vehicles, low volume supercars and the current diesel land speed record car.

We offer:• OEM system design methodologies & 

documentation• Complete EDS design including production 

drawings• Detailed component level specifications• CAN system design / management / 

testing• OEM level system testing• DVP&R management

Case Study – Military Vehicle Design• 100% New electrical system design• Modified engine / transmission, 

bespoke body control / instrument cluster / battery management system / power distribution in mixed 12V / 24V environment

• Vehicle level specification• System level specifications• Component & EDS specifications• EDS Design in Vesys• J1939 CAN system design• Component supplier management• 12 month program• 3 complete vehicles plus working 

show special

Case Study - JCB DieselmaxWhole vehicle electrical system design and supply including the following:• Bespoke power distribution, wiring

and switching for chassis, safety, engine and transmission systems

• Bespoke lithium ion batteries (separate 12V, 24V and safety system batteries)

• Steering wheel controls, cockpit controls and instruments

• 3 zone fire extinguisher system, emergency air safety system

• Parachute electrical deployment system

• Off-board power and charging systems

Case Study – OEM Electric VehicleVehicle level• LV EDS system design and

prototype manufacture• HV EDS system design and

procurement• CAN system definition /

management

Component levelDesign and manufacture of:• HV Power Distribution Unit• CAN Instrument Cluster Interface• Climate Control Unit• Battery Interface Module• Battery HV Junction Box• Battery contactor economiser

Electronic DesignHardware design for all volumes – concept to production

• Specification development• Schematic capture• Design FMEA including safety analysis• EMC & production testing considered from outset of program• Simple to complex bespoke designs• Multilayer PCB design• High voltage / current design• Design & configuration control• Manufacturing ranging from one off parts up to medium volumes• Altium Designer PCB design with full mechanical design export

Embedded SoftwareFull Software lifecycle - concept definition through to acceptance sign-off:• Hazard analysis and development of safety plans• Software architecture design and requirements capture• Verification and validation planning• Software quality assurance• Configuration management

Applications:• Safety critical systems• Low-level serial / CAN boot-loaders• Signal interfacing / conversion• Communications - UDS / gateways• Complex system control across networked architectures

Mechanical DesignWe have both 2D and 3D CAD mechanical design capabilities• We have multiple seats of CATIA V5

and AutoCad for mechanical component designs

• We have multiple seats of VeSys Design for harness components

• Our PCB design package is fully integrated with our M-CAD systems

We have demonstrated capabilities in:• Sealed enclosure design• Air / liquid cooled designs• Sand-cast, high pressure die-cast,

injection moulded, machined and stamped parts

• Low volume prototyping

Case Study – HV Battery Interface Module Design

As the result of an urgent request from acustomer we designed a Battery Interface Module incorporating CAN gateway. The unit separated the battery CAN system from the main vehicle CAN, and provided control over contactors and other battery interface features.• Bespoke hardware to production 

intent standard – reverse battery, ESD protection, EMC countermeasures

• OEM specification CAN hardware layer with full EMC / ESD protection

• Test box and prototype hardware delivered to software engineer within 4 weeks.

• Software was written in MISRA C• The project was delivered in 10 

weeks

We developed this high voltage power distribution unit for the prototype phase of an OEM customers electric vehicle. It included:• Component hardware and software 

specification• Distribution of all vehicle HV power, HV pre‐

charge, main contactor switching, control, fusing and switching of low current HV consumers

• 1kW DC/DC converter• Bespoke PTC Heater control with over‐

current protected output circuits and open circuit detection

• Isolation testing• Charging system switching• Protection for AC compressor switching• Up to 600V working voltage• >2400V isolation to 12V power system• High insulation / µA leakage• Bespoke enclosure with >IP67 protection• First parts were delivered to or customer 12 

weeks from receipt of order

Case Study – HV Power Distribution

Contact DetailsR&D Vehicle Systems Ltd / R&D Vehicle Components Ltd15 Beaumont CloseBanburyOX16 1TGT: 01295 70 95 95F: 01295 26 77 99info@rdvs.co.uk