Typically, how many computer microprocessors are there on a small car (eg Yaris) and how many on a top of the range Merc or BMW?
I am shortly doing a talk on the history of computers and just want to show how ubiquitous they are now. Obviously, I can list all the control functions I can think of, but I do not know which have their own computers and which are combined together.
Miany thanks
Mike Holland
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Here are the networked control units of my car, it is 5 years old...
The scan is looking for 17 control units based on the vehicle model and age, but only found 10 due to not all eqipment fitted, I assume each control unit has at least one CPU. The software lists over 50 for a VW Phaeton.
Chassis Type: 3B - VW Passat B5
Scan: 01,02,03,08,15,16,17,19,35,36,37,46,55,56,57,58,76
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Address 01: Engine
Controller: 3B1 907 401 B
Component: 2.5l/4VTEDC 0000AG D01
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Address 02: Auto Trans
Controller: 8D0 927 156 DP
Component: AG5 01V 2.5lTDI RdW 3131
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Address 03: ABS Brakes
Controller: 3B0 614 111
Component: ABS/ASR 5.3 FRONT D00
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Address 08: Auto HVAC
Controller: 3B2 907 044 J
Component: CLIMATRONIC B5GP 0003
1 Fault Found:
01274 - Air Flow Flap Positioning Motor (V71)
37-10 - Faulty - Intermittent
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Skipping Address 15-Airbags
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Address 17: Instruments
Controller: 3B0 920 926 A
Component: KOMBI+WEGFAHRSP VDO V01
2 Faults Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
01316 - ABS Control Module
49-10 - No Communications - Intermittent
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Address 19: CAN Gateway
Controller: 6N0 909 901
Component: Gateway K<->CAN 0001
4 Faults Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
01316 - ABS Control Module
49-10 - No Communications - Intermittent
01318 - Control Module for Injection Pump (J399)
49-10 - No Communications - Intermittent
01334 - Door Control Module: Rear Right (J398)
49-10 - No Communications - Intermittent
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Address 37: Navigation
Controller:
1 Fault Found:
00481 - Control Module for Traffic Radio (J559)
49-00 - No Communications
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Address 46: Central Convenience
Controller: 1C0 959 799 B
Component: 0M Komfortgerát HLO 0003
2 Faults Found:
01134 - Alarm Horn (H12)
49-00 - No Communications
00930 - Locking Module for Central Locking: Rear Left (F222)
27-10 - Implausible Signal - Intermittent
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Address 56: Radio
Controller: 3B0 035 186 D
Component: Radio BNO 0304
No Faults Found
or DTCs not supported by controller
or a communication error ocurred
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Thanks, Ashok. Most useful
Mike
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Hello, here is screenshots of all possible control units on VW/Audi.
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Depends what level you are taking uP down to. There could be half a dozen in the radio/CD player alone. My old electric aerial had a PIC chip in it.
Electric Mirrors - the list could be enormous.
Martin
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Depends what level you are taking uP down to. There could be half a dozen in the radio/CD player alone. My old electric aerial had a PIC chip in it. Electric Mirrors - the list could be enormous.
I think there are hundreds in most modern cars. Microprocessors can be had for a few pence these days, so they end up using them for just about anything. However, the kind of microprocessors used for electric wing mirrors are likely to be very different to the ones used for ABS or in the radio. The quantity of processors really doesn't have much of a meaning. Although I suppose some cars may have ones microprocessor performing the tasks that multiple microprocessors may do in another car. I would expect cars with regenerative braking etc. to have a few extra microprocessors. The extras eg, electric windows would also be likely to put the numbers up.
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