12
Electromobility - press workshop The future of electromobility Bosch technologies for electric vehicles | Dr. Matthias Küsell 1 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen. Bosch technologies for electric vehicles | Dr. Matthias Küsell

The future of electromobility - Bosch Media Service€¦ · The future of electromobility ... Hybrid vehicle Electric powertrain ... • High efficiency at • Maximum torque

  • Upload
    ngokiet

  • View
    224

  • Download
    0

Embed Size (px)

Citation preview

Electromobility - press workshop

The future of electromobility Bosch technologies for electric vehicles | Dr. Matthias Küsell

1 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Bosch technologies for electric vehicles | Dr. Matthias Küsell

From the hybrid to the electric vehicle

Electromobility - press workshop

From the hybrid to the electric vehicle

HybridConventionalcombustion engine Plug-in hybrid

Electric vehicle with range extender Electric vehicle

Inverter Inverter Inverter Inverter

Charger Charger Charger

ompo

nent

s

Battery HV battery HV battery HV battery HV battery

mot

orE

co

ncl.

elec

tric

mP

ower

train

in

2 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

P

Electric vehicle: focal points of development workElectromobility - press workshop

Electric vehicle: focal points of development work

Enhancedefficiency • Optimized electric

t d i

Safety• Safety concept for

hi h lty

Greater rangeReduced cost

motor design• Regenerative braking• Thermal and energy

management

Ensure compliance with conventional

high voltages• Vehicle

management• Adjustment to

vehicle dynamicscost conventional automotive standards

vehicle dynamics control system

• System conformity with ISO26262

Electric powertrainperformance

Acceleration

Comfort

Orient to stand-

• Optimized electric motor design

• Improved cooling of electric motor and

• Reduction of powertrain vibration

• Rapid battery charge• Optimized climate

Climbing powerMaximum speed

ard comfort of conventional vehicles

electric motor and power electronics

• Improved energy density of battery

• Optimized climate control

3 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Range depends on efficiency of electrical consumers

Electromobility - press workshop

g p y

200km

Range

150km

100km

50km

Basic electric vehicle

0kmLow-beam headlights

Low-beam headlights,

wipers

Low-beam headlights,

wipers,heated seats

Phoenix, AZ+40

A/C consumes 3kW

Moscow,-10

Heating consumes 6kW

Basic electric vehicle:• Weight 1000 kg • Ø Engine power 4.5 kW• Ø Speed 33 6 kph

heated seats 3kW consumes 6kW

• Energy consumed by driving alone 13.8 kWh/100km• Battery capacity 30 kWh• Drag 0 71

4 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Ø Speed 33.6 kph Drag 0.71

Focus: improve efficiency of vehicle as a whole

Electromobility - press workshop

p y

Enhancedffi i

Actions Examples

Electric powertrain:El i • Power rating

efficiency • Electric motor• Power electronics

Power rating• Continuous torque

Brake • Cooperative regenerative braking system

• Increased range

Auxiliary units • Vacuum-free braking system• Electro-mechanical power steering

Th l t & HVAC• Keeping passenger compartment at right

t t• Increased range• Reduced cost

Thermal management & HVAC temperature • Keeping components at right temperature

Power management• Enhanced operating strategies by linking with

navigation system (e.g. range extender) • Selective shutdown of auxiliary units• Selective shutdown of auxiliary units

Battery• Progress in cell chemistry • Optimize battery management system• Best possible thermal management

5 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Electric powertrain: development ojectivesElectromobility - press workshop

Electric powertrain: development ojectives

Electric powertrainHybrid vehicle

Electric powertrainElectric vehicleOptimization and enhancement

Enhanced efficiencyat EV-specific operating points

Hybrid vehicle Electric vehicle (EV)

Optimization and enhancement

Increased power ratingthrough improved cooling

Requirements:• Limited installation space

Requirements:• High efficiency at p

• Maximum torque• Maximum power

g ylow torque

• Continuous and maximum torque

6 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Technologies for electric motorsElectromobility - press workshop

Technologies for electric motors

PSMPSM ESM (permanent magnet synchronous motor)

Advantages with respect to installation space, power density, and weight

Mature technology used in all separateMature technology, used in all separate motor generators

ESM

Installation space smaller larger

Mechanical power identical

Power density higher lower(electrically excited synchronous motor)

Technological risksStrategic alternative due to high cost

sensitivity of rare earth metals

Power density higher lower

Maximum torque identical

Efficiency lower highersensitivity of rare earth metals (neodymium)Weight lower higher

7 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Reducing the heating load for electric vehicles

Electromobility - press workshop

g g

• Thermal insulation

• Climate controlas required

• Reductionof thermal

I. Reduction of energyrequirements

ent

[W]

Use waste heatComponents

(Electric motor, battery)

Conventionalvehicle

of thermal masses

II. Heatrecovery

ad r

equi

rem

e

= EV

with minimized heating load

( , y)

= EV

i h

Pre-heat/pre-coolwhile connected to mains

= EVHea

ting

loa

eat g oadwith

thermal management with pre-heat/pre-cool

Heating/cooling of the passenger compartment can reduce battery range by 40%.

8 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Objective Reduced energy demand without significant sacrifice of comfort

Electromobility - press workshop

Link-up with navigation systemLink up with navigation systemEnergy-efficient route

vehicle-specific energy-consumption modelR h i iRoute characteristics

Precise and up to the minute range estimatePrecise and up-to-the-minute range estimateconsumption model + route characteristicsvisualization of current range (update as a result of traffic jams, or because heating/cooling is on)

Destination

Home

( p j , g/ g )

Support for driver in optimizing range taxiing assistant to make most of recuperation

Kinder-garten

speed limit aheadtaxiing assistant to make most of recuperation potentialuse of heating/cooling, influence of choice of speed

speed limit ahead

9 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Electromobility - press workshop

Charger for high-voltage battery in EV & PHEVStatus:

External charge spots not yet available on a wide scaleE h k i i l "filli i "

Charger for high voltage battery in EV & PHEV

Each power socket is a potential "filling station"High-voltage battery recharged over night or while at work

Objective "on board" charger for global useObjective: "on-board" charger for global use

Challenges: Mains voltages and frequencies worldwideMains voltages and frequencies worldwideStandards (vehicles and power grids)Efficiency, installation space, weightService life and environmental conditions in the vehicleService life and environmental conditions in the vehicleUse optimum charging to increase service life of high-voltage battery

Standard charger for all power grids: one-phase, 3.3 kW charging capacityBosch is developing scalable charger (3 3 kW 6 6 kW 10 kW)

10 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Bosch is developing scalable charger (3.3 kW, 6.6 kW, 10 kW)

Electromobility - press workshop

SummarySummary

Bosch has integrated systems competence, and is developing all the components for electric driving such as the electric motor powercomponents for electric driving, such as the electric motor, power electronics, battery (SB LiMotive), charger, and brake systems

Efficiency, and how to improve it, plays a central role in the systematicEfficiency, and how to improve it, plays a central role in the systematic optimization of the energy efficiency of hybrid and electric vehicles.

Bosch parallel-strong hybrid system is already in series productionSeries development underway for customer projects for electric vehicles and further hybrids

11 GS-EH/MKT | 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.

Presse-Workshop Elektromobilität

12 07.07.2010 | © Robert Bosch GmbH 2010. Alle Rechte vorbehalten, auch bzgl. jeder Verfügung, Verwertung, Reproduktion, Bearbeitung, Weitergabe sowie für den Fall von Schutzrechtsanmeldungen.