1 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket CNG / LPG Klaus May AA/MKG1

2 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Market analysis LPG System overview CNG Components CNG System overview LPG Components

3 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket CNG System Carbon canister CAN Electronic control unit Diagnostic interface Diagnostic lamp Air mass sensor Speed sensor Phase sensor Ignition coil/ spark plug Temperature sensor Knock sensor Tank vent valve Throttling device (EGAS) CNG-rail/-injector internal CNG-tank valve Fuel pump module Lambda sensor Main catalytic converter Camshaft phaser ** Tank filler neck gasoline / CNG CNG-pressure regulator * Accelerator pedal module Fuel rail/ -injector Exhaust gas recoil valve Preliminary catalytic converter Immobilizer Pressure sensor Lambda sensor Bifuel- ECU CNG-pressure-/ temp. sensor CNG tank 200 bar Bosch-standard-components CNG-specific components *Consisting of pressure regulator, pressure sensor, pressure relief valve, shut off valve, **Optional

4 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Advantages for costumer No software changes for existing OE applications needed (but every valve has to be changed) Suitable for use in regions with oil free Natural Gas Warranty for Bosch approved applications of Gas engines Enables small packaging and weight reduction Standard driver stage (high resistance coil) Flow rates suitable for passenger cars (up to 2,0l, 4 cyl.) Electro magnetic injector specific designed for Natural Gas (CNG) Injection Capable for oil free CNG Adapted to the needs of modern CNG engines Small and light, weight approx. 25 g Only suitable for use with CNG (hydrogen may be possible) NGI2-CP Characteristics of NGI2-CP as replacement for EV1.3-CNG

5 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket CNG Pressure Regulator Features Reduction of tank pressure to injection pressure level for all vehicle operating conditions Solenoid-actuated shutoff-valve Integrated high-pressure sensor and pressure relief valve Customer Benefits Designed and realised for automotive-applications Certification complying to ECE-R110 Suitablefor for on-board diagnostic

6 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Features Same basic functionality as external tank valve, but integrated into tank Solenoid-actuated shutoff-valve (normally closed, accessible from the outside) Safety components and certification as required by legislation (ECE-R 110) Optional temperature sensor Internal Tank Valve Customer Benefits Crash worthiness / safety enhancement by reduced leakage probability after crash impact Reduction of outer height / less mounting space (packaging and tank volume advantage) Reduction of flow noise (e.g. during tank filling)

7 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Features Steel membrane with thin layer strain gauge Hermetically-sealed electronic Optional integrated temperature sensor (only low pressure) Pressure Sensors High Pressure Sensor DS-HD-KV4 Low Pressure Sensor DS-K-TF Customer Benefits Designed and realised for automotive- applications Compact, high robustness Certificated to ECE-R110 Suitable for on-board diagnostics (EOBD)

8 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Features Designed for gas applications Made of stainless steel Customer Benefits Designed and realised on customer request Compact, high robustness Interface rail and valve already checked Certificated to ECE-R110 CNG Fuel Rail Assembly

9 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Bifuel ECU (customer specific) Features Functionality gasoline/gas operation Power Stages for gas injectors 8 I/O for 2 pressure-, 2 temperature sensors, 2 shutoff valves, operating mode, tank-level Customer Benefits Compact and high reliability (versus 2 ECU concepts) Better packing/reduced wiring harness Integrated diagnostic concept (EOBD) Functions as turbo and EGR integratable

10 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Market analysis LPG System overview CNG Components CNG System overview LPG Components

11 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket LPG System 1.Engine control unit (ECU) 2.Gas control unit (ECU) 3.LPG tank with multivalve 4.Filling connection 5.Shut-off valve 6.Evaporator/pressure regulator 7.Filter 8.pressure sensor 9.Gas injector 10.Gas rail 11.Gasoline injection valve 12.Lambda sensor B1 13.Selector switch gas- gasoline operation 14.Diagnosis/adaptation/ calibration

12 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket Market analysis LPG System overview CNG Components CNG System overview LPG Components

13 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket LPG Tank Tasks / Functions The liquid gas tank is a pressure-resistant steel tank which can absorb 10 to 230 liter liquid gas depending on the size. The storage pressure is approximately 9 bar. At an excess pressure of approx bar the safety valve opens and blowes out the gas out-of-doors. Recess tanks as usual today, which are available in different sizes can be placed directly in the spare- wheele recess of the trunk. The spare wheel will be replaced by emergency tire inflator.

14 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket LPG Multivalve - Safety valve Tasks / Functions At an excess pressure of approx bar the safety valve opens and blowes out the gas out-of-doors, so the tank can not explode at a fire of the vehicle! Also when refueling the savety valve cuts off when the recess tank is (at approx. 80%) full. At the same unit there is a tank fuel level indicator and a manual shut-off valve in order not to drain the complete tank at the gas system when performing repairs. The solenoid shut-off valve is only activated after the activation of gas operation.

15 I-Business Convention 2008 Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. We Focus – I-Business Automotive Aftermarket LPG Evaporator pressure regulator Tasks / Functions The liquid gas arrives from the tank to the evaporator pressure regulator. Via the cooling circuit the evaporator pressure regulator is heated in order to guarantee a faster vaporisation of the liquid gas. At the evaporator the pressure is reduced to 2 bar. This pressure is constantly available at the injectors.