KIT CNG sample ( mẫu của bosch)

We Focus – IBusiness

I-Business Convention 2008

CNG / LPG

Klaus May
AA/MKG1

Automotive Aftermarket

1

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.


I-Business Convention 2008

Market analysis

CNG System overview

CNG Components

LPG System overview

LPG Components
Automotive Aftermarket

2

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness


We Focus – IBusiness

I-Business Convention 2008

CNG System
Exhaust gas
recoil valve

Carbon canister

Camshaft phaser **

Tank vent valve
Pressure
sensor

Fuel rail/
-injector

Ignition coil/
spark plug
Phase
sensor

Air mass sensor

Lambda
sensor
CNG-pressure-/
temp. sensor

CNG-rail/-injector
CNG-pressure
regulator *

Tank filler neck
gasoline / CNG

Preliminary
catalytic converter

Knock sensor

Main catalytic
converter

Speed
sensor

CAN

Bosch-standard-components

Diagnostic
lamp

CNG-specific components

Diagnostic
interface
Immobilizer

Fuel
pump
module

CNG tank
200 bar
internal CNG-tank valve

Automotive Aftermarket

3

Lambda
sensor

Temperature
sensor

Accelerator
pedal module

BifuelECU

Electronic
control unit

Throttling
device
(EGAS)

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.

* Consisting of
pressure regulator, pressure sensor,
pressure relief valve, shut off valve,
** Optional


I-Business Convention 2008

We Focus – IBusiness

NGI2-CP
Characteristics of NGI2-CP as replacement for EV1.3CNG
 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)

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.)

Automotive Aftermarket

4

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.


I-Business Convention 2008

We Focus – IBusiness

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 automotiveapplications
 Certification complying to ECE-R110
 Suitablefor for on-board diagnostic

Automotive Aftermarket

5

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.


I-Business Convention 2008

We Focus – IBusiness

Internal Tank Valve
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
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)
Automotive Aftermarket

6

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness

I-Business Convention 2008

Pressure Sensors
High Pressure
Sensor
DS-HD-KV4

Features
 Steel membrane with thin layer strain
gauge
 Hermetically-sealed electronic
 Optional integrated temperature sensor
(only low pressure)
Customer Benefits
 Designed and realised for automotiveapplications
 Compact, high robustness

 Certificated to ECE-R110
 Suitable for on-board diagnostics (EOBD)

Low Pressure
Sensor DS-K-TF
Automotive Aftermarket

7

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness

I-Business Convention 2008

CNG Fuel Rail Assembly
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

Automotive Aftermarket

8

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness

I-Business Convention 2008

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, tanklevel Benefits
Customer
 Compact and high reliability
(versus 2 ECU concepts)
 Better packing/reduced wiring harness
 Integrated diagnostic concept (EOBD)
 Functions as turbo and EGR integratable

Automotive Aftermarket

9

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.

I-Business Convention 2008

Market analysis

CNG System overview

CNG Components

LPG System overview

LPG Components
Automotive Aftermarket

10

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness


We Focus – IBusiness

I-Business Convention 2008

LPG System
1.
2.

3.

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4.
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1
2
13
6

7

5

3

7.
8.
9.
10.
11.

9
4
11

14.

8

12
10

Automotive Aftermarket

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12.
13.

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.

Engine control unit
(ECU)
Gas control unit (ECU)
LPG tank with
multivalve
Filling connection
Shut-off valve
Evaporator/pressure
regulator
Filter
pressure sensor
Gas injector
Gas rail
Gasoline injection

valve
Lambda sensor B1
Selector switch gasgasoline operation
Diagnosis/adaptation/
calibration


I-Business Convention 2008

Market analysis

CNG System overview

CNG Components

LPG System overview

LPG Components
Automotive Aftermarket

12

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. 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 – IBusiness


I-Business Convention 2008

We Focus – IBusiness

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. 25-30 bar the
safety valve opens and blowes out the gas outof-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.

Automotive Aftermarket

13

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.


I-Business Convention 2008

We Focus – IBusiness

LPG Multivalve - Safety valve

Tasks / Functions
 At an excess pressure of approx. 25-30 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.

Automotive Aftermarket

14

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.


I-Business Convention 2008

We Focus – IBusiness

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.

Automotive Aftermarket

15

Confidential | AA/MKC | 23-25/04/2008 | © Robert Bosch GmbH 2008. All rights reserved, also regarding any disposal,
exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights.