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Peugeot 308 Owners & Service Manuals

Peugeot 308: Organisation bulletin : Commercial launch : Electric drive train e-CMP (ELECTRIC COMMON MODULAR PLATFORM) (STEP 2) / Electric drive train e-DPE

Peugeot 308 2021-2024 (P5) Service Manual / Vehicle :: General / Data - identification / Organisation bulletin : Commercial launch : Electric drive train e-CMP (ELECTRIC COMMON MODULAR PLATFORM) (STEP 2) / Electric drive train e-DPE

N.B. : Traction circuit: traction battery electrical network.

N.B. : e-DPE : Programme of electric vehicles built on the platform EMP2 V3 (efficient Modular Platform 2 V3).

1. Electric drive machine

(1) Electric drive machine (Synchronous engine with permanent magnets) .

(2) Electric drive machine ECU and inverter assembly.

technology Synchronous engine with permanent magnets
Maximum power ( CE standard ) 115 kW
Supplier NIDEC
Specificities Coolant-cooled assembly with integrated inverter (2 at 1)
Single phase on-board charger version (ZKXZ) As standard
Three-phase on-board charger version Optional

2. Electric drive machine inverter

(3) Electric drive machine inverter.

During the driving phase, the electric drive machine inverter converts the direct voltage of 400 V from coming from the traction battery to alternating voltage to supply the electric traction machine.

The inverter controls the electric drive machine when driving (speed and power), during the energy recovery phase, when braking and when the accelerator pedal is released.

By managing the energy recovery phase, the inverter can cause deceleration torque : The electric drive machine is then used as an alternator and generates a current which charges the traction battery.

The operating voltage is between 230 and 330 V (alternating current) under 400 V (direct current).

The inverter also allows the electric drive machine to function in the opposite direction(There is no specific reduction gear for reverse).

N.B. : A solution for replacement of the electric drive machine inverter only is planned : Refer to the method.

3. Electric drive train supervisor ECU (e-VCU)

(4) Electric drive train supervisor ECU (e-VCU).

The electric drive train supervisor ECU (4) manages the electric drive train.

Refer to the general principles of operation : Electric drive train supervisor ECU .

4. Reduction gear

(5) Reduction gear .

"a" Serial number engraving zone.

Reduction gear Type RG1L
Maximum torque 260 Nm
crown wheel and pinion 17 / 77
Reduction ratio 8,69 : 1
Reduction gear locking With the park finger locking actuator
Reduction gear unlocking By rotating the park finger locking actuator (80 revolutions)Access via the flap "a"
Design PSA

5. Traction battery

5.1. Thermal runaway warning

In the event of thermal runaway of the traction battery, a voice alert has been added to the multifunction screen to warn the occupants to urgently evacuate the vehicle.

5.2. General specifications

Identification Description Quantity
(6) Traction battery 1
(6a) Upper cover 1
(6b) Traction battery modules 17
(6c) Sump 1
(6d) Traction battery internal junction box 2
(6e) Traction battery ECU (BMU) 1

technology lithium-Ion
Installed capacity 51 kWh / 54 kWh (Depending on vehicle)
Voltage 400V (Direct current)
Number of traction battery modules 17 (1P6S LiIon)
Cooling system Via coolant using the cooling plate
Traction battery ECU (BMU) 1 (Not accessible without removing the upper cover)
(CMC) traction battery cell management ECU 9
Traction battery internal junction box (Junction Box) 2 (Not accessible without removing the upper cover)
Central junction box equipment inside the traction battery 2 relays and 1 fuse (400V)
Rear junction box equipment inside the traction battery Fuses 21 current sensor (Available from Parts Division)Relay (Non-replaceable components)
Rear junction box equipment inside the traction battery 1Relay
Upper cover assembly Adhesive and 10 screws
Design STELLANTIS

Charge type Voltage /Amperage
Normal charge 230V (Single phase alternating current) / 8 or 16 A
Rapid charge (Alternating current) 230V (Single-phase and three-phase alternating current) /16 or 32 A
Rapid charge (Direct current) 400V (Direct current)

5.3. Dimensions / Weight of the traction battery

Dimensions (With 2540 mm channel) 2 X 1,3 X 0,3
weight 350 kg

6. On-board charger/direct voltage transformer assembly

(7) External junction box.

(8) On-board charger/direct voltage transformer assembly.

N.B. : The external junction box is independent of the on-board charger/direct voltage transformer assembly.

6.1. On-board charger

6.1-1 7,4 kW monophase on-board charger.

The on-board charger (8) charges the traction battery in normal charge mode by transforming 230 V (alternating current) to 400 V (direct current).

Power 7,4 kW
Supplier MAHLE™
Identification Using the VIN or the supplier’s label on the on-board charger

6.1-211 kW three-phase on-board charger (Optional).

The on-board charger (8) charges the traction battery in normal charge mode by transforming 230 V (alternating current) to 400 V (direct current).

Power 11 kW
Supplier MAHLE™
Identification Using the VIN or the supplier’s label on the on-board charger

6.2. direct voltage transformer

The on-board charger integrated direct voltage transformer converts the 400 V (direct current) current from the traction battery to 14,4 V (direct current) to supply the 12 V auxiliary network and recharge the ancillaries battery.

6.3. External junction box(Junction Box)

(7) External junction box.

The external junction box , independent from the on-board charger/direct voltage transformer assembly, permits electrical distribution of the voltage (drive circuit) from the traction battery to the 400 V electric air conditioning compressor, the 400 V electric coolant heater and the on-board charger (OBC).

The external junction box contains 3 protection fuses (In the event of a malfunction) :

  • 1400 V electric air conditioning compressor protective fuse
  • 1400 V electric coolant heater protective fuse
  • 1On-board charger protection fuse (OBC)

N.B. : The 3 fuses can be replaced (Refer to the procedure available on the manufacturer’s aftersales documentation portal).

7. Electric air conditioning compressor

(9) Electric air conditioning compressor .

The electric air conditioning compressor :

  • Produces the cold air necessary for the passenger air conditioning function and to supply the heat pump technology
  • Is supplied with both 400 V (for the power) and in 12 V (for the electronics) and consists of an electric motor and an electric power and control module

Supplier VALEO™
technology Electric air conditioning compressor
Electric air conditioning compressor supply 400V
Electric power and control module supply 12V
Cubic capacity 34 cc
Oil quantity 160 cc
Total capacity of the air conditioning circuit 850 ± 25 grams

8. Circuit breaker connector (e-service plug)

CAUTION : Lock out the vehicle to work on the traction circuit, as disconnecting the circuit breaker connector (e-service plug) is insufficient (Refer to the electrical lockout procedure available on the manufacturer’s aftersales documentation portal).

8.1. e-CMP

(10) Circuit breaker connector (e-service plug).

"b" Closed circuit position.

"c" Open circuit position.

The circuit breaker connector (e-service plug) opens the traction battery relays to shut off the supply to the traction circuit.

The traction battery is thereby isolated from the electric drive train circuit.

A label indicating the location of the circuit-breaker connector (e-service plug) in the vehicle is affixed to the front bumper plate.

8.2. e-DPE

(10) Circuit breaker connector (e-service plug).

"b" Closed circuit position.

"c" Open circuit position.

The circuit breaker connector (e-service plug) opens the traction battery relays to shut off the supply to the traction circuit.

The traction battery is thereby isolated from the electric drive train circuit.

A label indicating the location of the circuit-breaker connector (e-service plug) in the vehicle is affixed to the front bumper plate.

9. Fire brigade loops

The rear and front fire brigade loops allow the fire brigade to open the traction battery relays by isolating the cable. The traction battery is thereby isolated from the electric drive train circuit.

9.1. Front fire brigade loops

9.2.1 - e-CMP.

(11) Special fire brigade label (Front fire brigade loops).

The front fire brigade loop is located under the left-hand scuttle panel and is identified by a special label. The scuttle panel must be pulled out to access the front fire brigade loop.

9.1.2 - e-DPE.

(11) Special fire brigade label (Front fire brigade loops).

The front fire brigade loop is located under the left-hand scuttle panel and is identified by a special label. The scuttle panel must be pulled out to access the front fire brigade loop.

9.2. Rear fire brigade loop

9.2.1 - e-CMP.

(12) Special fire brigade label (Rear fire brigade loop).

The rear fire brigade loop is located in the rear left flap of the vehicle and is identified by a special label.

9.2.1 - e-DPE.

(12) Special fire brigade label (Rear fire brigade loop).

The rear fire brigade loop is located under the left-hand boot side trim and is identified by a special label. The left-hand boot side trim must be pulled out to access the rear fire brigade loop.

10. Heat pump operation

CAUTION : When charging the traction battery, the traction battery and current transformation components cooling system is operational. The cooling fan starts according to the cooling requirements. This is a normal operating strategy.

10.1. Heat pump function operating principle

(13) Water condenser .

(14) Heating circuit electric coolant heater .

The integration of heat pump technology on electric vehicles is innovative and comprises :

  • 1 air conditioning circuit
  • 1Heating circuit (HTC)
  • 1Electric drive train cooling circuit ‎(LTC)
  • 1Traction battery cooling circuit (VLTC)

The heat pump function ensures the following: :

  • Dehumidification of the passenger compartment for climates between 0 and 20°C
  • Air conditioning of the passenger compartment for hot climates or periods
  • Heating of the passenger compartment via an electric coolant heater (14) for cold climates

The aim being to optimise the temperature of the passenger compartment while limiting the electrical energy consumed.

PSA Group heat pump technology is referred to as double-indirect.

Operation in heater mode :

  • A secondary water circuit is added between the cooling circuit and the heater-air conditioning unit
  • The energy from the air conditioning circuit is transferred to the water via the water condenser (13)
  • The heated water supplies the heater-air conditioning unit heater matrix

Operation in air conditioning mode :

  • The energy from the refrigerant fluid is transferred to the water via the water condenser
  • The energy transferred to the refrigerant is then released on the front panel in the drive train cooling circuit radiator
  • The water condenser is not used in air conditioning mode

10.2. Heating circuit electric coolant heater (WATER HEATER)

Heating circuit electric coolant heater :

  • Ensures heating of the passenger compartment and the regulation of the passenger compartment temperature
  • Is equipped with additional (CTP)-type heating resistors with a 400 V supply and conditions the passenger compartment heating circuit fluid

10.3. Water condenser

The water condenser (13) ensures the energy released during the condensation of the refrigerant is exchanged to transferred to the coolant circuit dedicated to the passenger compartment.

The desiccant cartridge (15) is replaceable.

10.4. Electric drive train cooling circuit ‎(LTC)

10.4-1- Location.

"A" Electric drive chain cooling circuit (Between 60 and 70 °c).

"B" Heating circuit (80°C maximum).

"C" Traction battery cooling circuit (30°C maximum).

(1) Electric drive machine (Synchronous engine with permanent magnets) .

(3) Electric drive machine inverter.

(6) Traction battery.

(8) On-board charger/direct voltage transformer assembly.

(13) Water condenser .

(14) Heating circuit electric coolant heater .

(16) Drive train cooling circuit coolant pump .

(17) Heater matrix .

(18) Water manifold.

(19) Heater matrix (HVAC) (Heating/air conditioning unit).

(20) Expansion tank.

(21) Coolant - air conditioning heat exchanger .

(22) Traction battery cooling system coolant pump .

10.4-2- Topping up the coolant.

CAUTION : It is prohibited for the customer to top up the coolant, and also during a service without having first carried out a leak check.

(23) Prohibition label.

N.B. : To allow the network to analyse any leaks from the circuit and especially internal leaks in the battery pack, a label prohibiting the customer from topping up the coolant has been affixed to the expansion bottle.

N.B. : From 02/2023, in addition to the label, a locking system prohibiting the opening of the expansion bottle without breaking it will be launched in production.

(24) Expansion bottle locking system.

(25) Tyre pressure label.

N.B. : For the network, unlocking of the expansion bottle is possible using a screwdriver (In "d").

10.5. Air conditioning circuit (Thermodynamic circuit)

10.5-1- Location.

(9) Electric air conditioning compressor .

(13) Water condenser .

(14) Heating circuit electric coolant heater .

(19) Heater matrix (HVAC) (Heating/air conditioning unit).

(21) Coolant - air conditioning heat exchanger .

(26) Engine compartment air conditioning evaporator ‎.

10.7-1 Circuit .

(27) Controlled pressure relief valve .

(28) Coolant-air conditioning heat exchanger solenoid valve.

(29) 3-way solenoid valve.

11. Drive train electrics schematic layout

11.1. Connection between the power components

"D" Ancillary circuit (components supplied by the ancillary circuit (12 V).

(1) Electric drive machine.

(6) Traction battery.

(7) External junction box.

(8) On-board charger/direct voltage transformer assembly.

(8a) direct voltage transformer.

(8b) 7,4 kW or 11 kW on-board charger.

(9) Electric air conditioning compressor .

(14) Heating circuit electric coolant heater .

(30) Charging socket unit( 4 mode( Specific to China) (*).

(31) Charging socket unit( Mode 2 and 3) (Specific to China) (*).

(32) Charging socket unit( Europe) (*).

(33) Charging socket unit earth electrical harness.

(34) Additional electrical harness for the on-board three-phase charger.

(35) Ancillary circuit earth.

(36) Ancillaries battery.

11.2. Power harnesses

"e" Output 12 V.

(1) Electric drive machine.

(6) Traction battery.

(6d) Traction battery internal fuse (Traction battery / Junction box).

(7) External junction box.

(7a) Junction box internal fuse (Junction box / Heating circuit electric coolant heater ).

(7b) Junction box internal fuse (Junction box / Electric air conditioning compressor .

(7c) Junction box internal fuse (Junction box / On-board charger/direct voltage transformer assembly.

(8) On-board charger/direct voltage transformer assembly.

(9) Electric air conditioning compressor .

(14) Heating circuit electric coolant heater .

(32) Charging socket unit.

6 electrical power harnesses :

  • (37) Electrical power harness between the charging socket unit and the on-board charger/direct voltage transformer assembly (Charge mode 2)
  • (38) Electrical harness for power between the charging socket unit and the traction battery (Rapid charge modes 3 and 4)
  • (39) Electrical power harness between the external junction box and the electric coolant heater
  • (40) Electrical power harness between the external junction box and the electric air conditioning compressor
  • (41) Power electrical harness between the external junction box and the on-board charger/direct voltage transformer assembly
  • (42) Electrical harness for power between the traction battery and the electric drive machine
  • (43) Power electrical harness between the electric drive machine and the external junction box

N.B. : The "traction battery/electric drive machine" and "electric drive machine/on-board charger" electrical harnesses are used as specific tools to check if there is no voltage present ; Using the tool [VAT].

3Fuses on the traction circuit :

  • 1Integrated inverter fuse to protect the electric drive machine against any on-board charger malfunctions
  • 1Integrated junction box fuse to protect the on-board charger against any heating circuit electric coolant heater malfunctions
  • 1Integrated junction box fuse to protect the on-board charger against any electric air conditioning compressor malfunctions

12. Specifics of charging traction and ancillary batteries

ELECTRIC DRIVE TRAIN

Refer to the method : New vehicle preparation : Special feature of technical preparation - e-308 (e-P5) .

13. Brakes

Energy recovery on releasing the accelerator.

When releasing the accelerator, the energy recovery function acts like an engine brake, causing the vehicle to deaccelerate without having to depress the brake pedal. When the accelerator pedal has been released, the vehicle slows down more strongly.

When releasing the accelerator, the mechanical energy is then recovered to ensure a partial recharge of the traction battery.

From mode "D / B", push the sequential gear lever backwards to activate/deactivate the energy recovery function when releasing the accelerator.

"D" is replaced by "B" on the instrument panel.

When releasing the accelerator, the status of the energy recovery function is not stored when the ignition is switched off.

N.B. : If the traction battery charging level is close to the maximum level, the vehicle’s deceleration may be weak when the accelerator pedal is released.

Peugeot 308 2021-2024 (P5) Service Manual

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