BIN@Sheffield 2014 Nissan group: system optimisation for improved vehicle range

NISSAN GROUP STRICTLY CONFIDENTIAL

The New Nissan LEAF

System Optimisation for Improved Vehicle Range

Iain Urquhart

Research EngineerNissan Technical Centre Europe Nissan Motor Co., Ltd.

www.nissan-global.com

Overview

2

The World’s Best Selling EV

140,000 units sold worldwide & growing

46 % Global Market Share

The MY10 LEAF

Introducing the MY 14 LEAF

ePowertrain Evolution

New Charger Location

B-mode

New Heater technology

Overall improvement of MY14 Vs MY10

Leading, Environmentally friendly, Affordable, Family car (LEAF)

www.nissan-global.com3

A real car with no compromise to performance

4 : Power Inverterand transformer

5 : Electric Motorand Reducer

2 : Battery Charger

1 : Connector Box

3 : Lithium-IonBattery

THE MY10 NISSAN LEAF – Key EV Components


REDUCED DRIVELINE

FRICTION

IMPROVED

BRAKE

REGENERATION

IMPROVED

AERODYNAMICS

MORE EFFICIENT

MOTOR

VEHICLE WEIGHT

REDUCTION 32 KG

MY14 LEAF: RANGE IMPROVEMENT POINTS


NEW NISSAN LEAFORIGINAL NISSAN LEAF

ELECTRIC POWERTRAIN EVOLUTION

Inverter

PDM（Charger,

DC/DC, JB）

Motor

Reducer

Inverter

Motor

Reducer


NEW CHARGER LOCATION

Original Nissan Leaf with the Charger in the Boot

New Nissan Leaf with Charger under the Bonnet

• Key benefits of moving the charger to the front of the car:• Reduced harness size (cost and complexity reduction)• Increase of usable boot space for customer

+40 LITRES


New Additional Drive Mode

Increased Brake Regeneration

More Stability and Control

B-MODE : MORE FUN, MORE EFFICIENT


HEATER REDESIGNED FOR BETTER EFFICENCY

Refrigerant冷媒

Input

1.3kw

Heat Exchanger

温水熱交換

冷水

Output1.0kw

冷風

温風

Current LeafElectrical heater system

Refrigerant冷媒

Input

1.3kw

Heat Exchanger

温水熱交換

冷水

Output1.0kw

冷風

温風

Current LeafElectrical heater system

Refrigerant冷媒

Input

1.3kw

Heat Exchanger

Heat Exchanger

温水熱交換

Output1.0kw

風

Original LEAFElectrical heater system

Input0.4kｗ

Refrigerant冷媒

Cool

Hot

温風

Heat pump systemOutput1.0kw

Air heat空気熱

0.6kw

熱交換熱交換

冷風

Input0.4kｗ

Refrigerant

Cool

Hot

Today’s LEAFHeat pump system

Output1.0kw

Air heat

0.6kw

熱交換熱交換

Heat Pump reduces energy consumption by 70%


Winter Urban Stop and Go, Traffic Jam

AUTONOMY62 miles

Original LEAF

77 miles

New LEAF

REAL-WORLD DRIVING RANGE

15 mph


200

180

160

140

120

100

AU

TO

NO

MY

(km

)

NEW NISSAN LEAFORIGINAL NISSAN LEAF

109 miles

(175 km)

124 miles

(199 km)

OFFICIAL RANGE IMPROVEMENT (NEDC)

LEAF NOW GOES EVEN FURTHER


Domestic Plug

(10 amp)

Home Wallbox or

Street Charger

(16 amp)

Home Wallbox or

Street Charger

(32 amp)

CHAdeMO

Quick Charger

12 hours

0-100% charge

8 hours

0-100% charge

8 hours

0-100% charge

30 minutes

0-80% charge

12 hours

0-100% charge

8 hours

0-100% charge

4 hours

0-100% charge

30 minutes

0-80% charge

Optional 6.6 KW Onboard Charge now makes charging from a 32 A Charger possible

CHARGING IN HALF THE TIME


Questions?

BUILT IN SUNDERLAND, UK SINCE MARCH 2013.


APPENDIX


CHASSIS TUNING BY NTCE IN EUROPE

www.nissan-global.com

Summary

15

• Analysis of early adopters has allowed key concerns areas to be highlighted and further system optimisation applied

• Tackling key current consumption devices such as the heater and flux weakening current at high speed has allowed for significant range improvement

• Evolution of brake regeneration control allows customer to set level of engine braking according to taste

• Lessons continue to be learned and the knowledge gained will be directly applied to future EVs


SPECIFICATIONS

Max speed 90mph

Battery Type laminated lithium-ion battery

Battery capacity/power 24kWh/over 90 kW

Max Engine Power 80kW

Max Engine Torque 254 Nm

Brakes Regenerative braking


GRADES

VISIA

Auto A/C

Intelligent Key (I-Key)

Hill Start Assist NEW

16” Steel Wheels

Black interior Trim NEW

3.6kw Charger

Front Fog Light

MAIN OPTIONS:

Nissan Connect 2

+ Colour Reversing Camera NEW

6.6kw Charger NEW

CHAdeMO Quick Charge

ACENTA

CHAdeMO Quick Charge

CarWings

Colour Reversing Camera

16” Alloys

Black or Grey trim

Privacy Glass

Auto Lights/Wipers

Electric Folding Mirrors

Cruise Control

Heat Pump NEW

B-Mode NEW

6 Speakers

MAIN OPTIONS:

6.6kw Charger NEW

Solar Panel spoiler

TEKNA

360º Around View

Monitor NEW

17” Alloys NEW

Black Leather NEW

Bose Sound System NEW

LED Headlamp

Heated Seats & Steering

Wheel

MAIN OPTIONS:

6.6kw Charger NEW

Solar Panel Spoiler


Nissan is working with Governments & Businesses across the world to develop Quick Charge corridors. • Here in the UK Nissan working with OLEV to support the government funded Plugged In Places Scheme • Providing 86 DC changers at Motorway service stations across the UK • To kick start the first national EV rapid charge network > 88%

of the UK population are less than 50 miles away

from a rapid charger

EV CHARGING TOTALS IN UK

THE WORLD IS CHANGING


STORAGE BATTERIES ON WHEELSNissan LEAF supplies electricity to home

×

Power supplywhile black out

Renewable energy

[kW]

Demandin house

Solargeneration

6 12 18 24

Peak saving

Electricity demand peak

6 12 18 24

Off-peak

[kW]


*PCS: Power Control System

AudioA/C1500W

Lighting300W

Lighting300W

Microwave1300W

TV 150W

Refreg.300W

LEAF TO HOME PCS* enables bi-directional electricity management


eLCV’s & TAXIS ARE ON THEIR WAY ….

Nissan’s e-NV200 is scheduled to launch in 2014Positive feedback has been received from fleet customers;

it is quiet and comfortable with generous carrying capacity

BIN@Sheffield 2014 Nissan group: system optimisation for improved vehicle range

Automotive

Transcript of BIN@Sheffield 2014 Nissan group: system optimisation for improved vehicle range