Sensing in automotive powertrain and braking system.pdf

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Sensing in Automotive -
Powertrain and Braking Systems
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Agenda
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Brief Introduction
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Automotive electronics & sensors
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Capabilities available from ON Semiconductor
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Powertrain Systems
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Gasoline and diesel engines
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Main powertrain sensors
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Braking and Stability Control Systems
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Basic systems: ABS, EBD, TCS, ESC
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Sensors for dynamic braking
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Examples of automotive sense interface ICs
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Sensing interface IP from ON Semiconductor
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Automotive Electronics
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Value added by ON Semiconductor APG
– Proprietary High-Voltage Processes
– Innovative Solutions: Sensor Interfaces,
IVN, High-Voltage System-on-Chip
– Harsh Environment Applications
– Extensive Automotive Portfolio
←
focus area for
green electronics
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Key Successes in sensing
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–
–
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Steering/Pedal Angle Sensor
Pressure sensors for Powertrain / Braking
Position Sensors for Headlight Control
Gyro Sensors for Stability Control
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Main drivers for new electronics
– Safety
– Emissions
– Fuel consumption
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Regulation plays a key role
3
Modern Automotive Sensors
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•
•
•
•
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•
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External sensing element or MEMS
Built-in protections (shorts, EMI, ESD…)
Diagnostic modes / redundancy
Accuracy / linearity reaching ~0.1% to 1%
NVM for trimming and calibration
Nonlinear temperature compensation
T
J
at IC: from –40
o
C up to +125~200
o
C
Target failure rate: zero ppm
4
Automotive Technologies Portfolio
Voltage
100 V
80 V
HBIMOS
I2T100
50 V
I3T50
25 V
5V
3.3 V
1.8 V
ABX
C07
1K
5K
0.7 u
0.6 u
I2T30(E)
C5X
I3T25
D3
C035
C3,C035U
100K
I3T80
I4T
C018
500K
0.18 u
Gate Count
Geometry
(drawn poly)
Features
5
>1.5 u
0.35 u
(OTP, EEPROM, etc.)

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