BMW F01 / F02 / F03 / F04

[Tyler]

• Технический тренинг BMW 7 F04 Active Hybrid. 130 страниц. Язык - английский.

Содержание:

1. Introduction...................................... .................................................. .................................................. .......1
1.1. Identifying features.......................................... .................................................. .................................................. 2
1.1.1. Exterior.......................................... .................................................. .................................................. ........... 2
1.1.2. Interior.......................................... .................................................. .................................................. ........ 3
1.2. Electric motor............................................. .................................................. .................................................. .... 4
1.3. Lithium-ion battery........................................... .................................................. ...........................................5
1.4. Driving situations........................................ .................................................. .........................................6
1.4.1. Automatic engine start-stop function.......................................... ............................................... 6
1.4.2. Driving off............................................... .................................................. ................................................ 6
1.4.3. Steady driving........................................... .................................................. .................................................. .7
1.4.4. Acceleration...................................... .................................................. .............................7
1.4.5. Brake energy regeneration...................................... .................................................. ...........................................7
1.5. Cooperation....................................... .................................................. .................................................. .....8
1.6. Technical data.............................................. .................................................. ............................................... 8

2. Powertrain........................................ .................................................. .................................................. ............11
2.1. Modified N63 engine............................................ .................................................. ..........................................11
2.1.1. Overview.......................................... .................................................. .................................................. ...11
2.1.2. Belt drive............................................. .................................................. .................................................. ...11
2.1.3. Cooling system............................................ .................................................. .......................................12
2.1.4. Engine cooling........................................... .................................................. .............................................13
2.1.5. Low-temperature cooling circuit........................................... .................................................. .................14
2.2. Electric motor............................................. .................................................. .................................................. 17
2.2.1. Overview.......................................... .................................................. .................................................. ...17
2.2.2. Installation location.......................................... .................................................. ..................................... 17
2.2.3. Design............................................ .................................................. .................................................. ......... 18
2.2.4. Service instructions...................................... .................................................. .........................................25
2.3. Modified GA8HP70Z automatic transmission...................................... .................................................. .............26
2.3.1. General hardware requirements...................................... .................................................. ....................... 26
2.3.2. Hydraulic pressure accumulator....................................... .................................................. ......................26
2.3.3. Modified functions......................................... .................................................. ............................................... 32
2.4. Shafts and rear differential...................................... .................................................. ......................................... 33
2.5. New automatic engine start-stop function.......................................... .................................................. ..................34
2.5.1. Overview.......................................... .................................................. .................................................. .......34
2.5.2. Function from the customer's point of view.............................................. ............................34
2.5.3. Distributed function.......................................... .................................................. .....................................36

3. Hybrid Braking System............................................ .................................................. .................................40
3.1. System overview.......................................... .................................................. .............................................40
3.2. Functions......................................... .................................................. .................................................. ....... 41
3.2.1. Hydraulic and regenerative braking........................................... .................................................. .......41
3.2.2. Special states............................................ .................................................. .............................................46
3.3. System Components........................................ .................................................. ................................47
3.3.1. Plunger brake master cylinder.......................................... .................................................. ........................ 47
3.3.2. Dynamic Stability Control........................................... .................................................. .....................................50

4. Bus Systems........................................... .................................................. .................................................. ...... 51
4.1. Bus Chart Overview.......................................... .................................................. ..............................................52
4.2. New control units and bus systems........................................... .................................................. ...................... 54
4.2.1. Electric motor electronics (EME)............................................. .................................................. ............. 54
4.2.2. Hybrid CAN (H-CAN).............................................. .................................................. ................................. 55
4.2.3. Battery management electronics (SME)............................................. ........................................ 56
4.2.4. Electric A/C compressor........................................ .................................................. .................................. 56
4.3. Adapted control units............................................. .................................................. ........................................ 57
4.3.1. IHKA.............................................. .................................................. .................................................. .......... 57
4.3.2. Instrument cluster........................................... .................................................. ........................57
4.3.3. CIC............................................... .................................................. .................................................. ....57
4.3.4. DME............................................... .................................................. .................................................. ..57
4.3.5. DSC............................................... .................................................. .................................................. .........57
4.3.6. ACSM.............................................. .................................................. .................................................. ....58
4.4. Omitted control units............................................. .................................................. .......................................... 58

5. Power Supply............................................ .................................................. .................................................. .. 59
5.1. Energy management........................................ .................................................. ..............................................60
5.1.1. Vehicle starting capability........................................ .................................................. ........................................60
5.1.2. Starting aid............................................... .................................................. ............................................60
5.2. Terminal control........................................... .................................................. .............................................62
5.2.1. "Ready to drive" mode.............................................. .................................................. ............................64
5.3. Reverse polarity protection........................................ .................................................. .........................................64

6. High-voltage Battery Unit.............................................. .................................................. ...........................65
6.1. Overview.......................................... .................................................. .................................................. ........... 65
6.1.1. Installation location and external characteristics................................... .........................65
6.1.2. System wiring diagram........................................... .................................................. ................................68
6.1.3. High-voltage battery........................................... .................................................. ....................................69
6.1.4. Battery management electronics....................................... .................................................. ................ 71
6.1.5. High-voltage connection........................................ .................................................. .................................72
6.1.6. High-voltage safety connector (Service Disconnect)....................................... .......73
6.1.7. Overcurrent protection........................................ .................................................. ....................................... 75
6.1.8. Cooling system............................................ .................................................. .................................................. 75
6.2. Functions......................................... .................................................. .................................................. .......... 80
6.2.1. Starting the high-voltage system............................................ .................................................. ............. 80
6.2.2. Shutting off the high-voltage system............................................ .................................................. .81
6.2.3. Fast shut-off of the high-voltage system............................................ ....................................... 81
6.2.4. Charging and operational strategy.......................................... .................................................. ........... 82
6.2.5. Monitoring functions......................................... .................................................. ......................................82
6.3. Service Instructions...................................... .................................................. ................................................. 86
6.3.1. Installation and removal........................................... .................................................. ................................ 86
6.3.2. Charging and starting aid............................................... .................................................. ..................................86
6.3.3. Safe working practices for working on a high-voltage system.................. 87
6.3.4. Procedure after an accident.......................................... .................................................. .............................. 90

7. Power Electronics....................................... .................................................. .................................................. . 92
7.1. Installation location and connections....................................... .................................................. ..................... 92
7.2. System Overview.......................................... .................................................. ..............................................95
7.3. Functions......................................... .................................................. .................................................. ......... 96
7.3.1. DC/DC converter......................................... .................................................. ..........................................96
7.3.2. Connection to the electric motor............................................. .................................................. ............ 99
7.3.3. Connection for high-voltage battery........................................... .................................................. 100
7.3.4. EME low-voltage connector......................................... .................................................. ........................... 101
7.3.5. Cooling of the EME............................................... .................................................. ................................103
7.3.6. Reverse polarity protection........................................ .................................................. ...............................104
7.4. Service Instructions...................................... .................................................. ..............................................104

8. Displays and Controls.......................................... .................................................. ......................................... 106
8.1. "Ready to drive" displays.......................................... .................................................. ...................................... 106
8.2. Displays while driving........................................... .................................................. ...........................................107
8.3. Displays when accelerating...................................... .................................................. ....................................... 108
8.4. Displays when braking........................................... .................................................. ......................................... 109
8.5. Differences between the European and US versions.......................................... ................................110
8.6. Additional displays in the CID............................................... .................................................. .......................111
8.7. Hybrid-specific Check Control messages.......................................... .................................................. .................111

9. Climate Control........................................... .................................................. .............................................113
9.1. Electric A/C compressor........................................ .................................................. ..........................................113
9.1.1. Structure of the electric A/C compressor........................................ .....................................115
9.2. Refrigerant circuit........................................... .................................................. ...............................................119
9.3. New features.......................................... .................................................. ................................................12 0
9.3.1. Independent air conditioning...................................... .................................................. ...........................120
9.3.2. Residual Cooling........................................... .................................................. ........................................121

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