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Hydrid Control System - Hev: Other Kia Optima III

Charging System 4 illustrations

[HCU Main Functionalities]

ItemFunctionality
Demand Torque DeterminationDriver Creep Demand Torque Calculation Driver Acceleration/Deceleration Torque Calculation Driver Total Demand Torque Calculation
Regeneration Brake ControlRegeneration Brake Demand Torque Control Regeneration Brake Estimated Torque Calculation
EV/HEV Mode DeterminationEngine Crank Condition Determination Engine Target Operating Status Determination
Battery SOC BalancingElectric Power Limitation Charge/Discharge Power Determination Auxiliary System Power Limitation and Compensation
Engine Operating Point DeterminationEngine Target Speed Determination in Idle Load Engine Target Torque Determination in Part Load Engine Target Torque Determination in Full Load Engine Target Torque Determination in Engine Stop or Passive Run
Idle/Racing Charge ControlIdle Charge Control Racing Charge Control
Engine Start/Stop ControlCrank Method Selection Speed Control for Cranking Engine Fuel Injection Control Engine Stop Control Engine Firing Complete Determination
Engine Clutch Engage/Slip/Release ControlSynch Engage Control Launch Engage Control Engine Brake Engage Control Engage in Shift Release Control
Torque Coordination ControlEngine Torque Determination in Transient State Motor Torque Determination in Transient State Generator Torque Determination in Transient State
Torque Invention ControlTorque Increase/Decrease Determination
Anti-Shock ControlParabolic Torque Restriction Shift Assist Control Engine Clutch Slip Control Anti-jerk Control
System Limit ControlBattery Charge/Discharge Limit Control Engine, Hybrid Drive Motor, HSG Torque Limit Control
Torque MonitoringHybrid powertrain torque monitoring
Fail-SafeHybrid control system fail-safe control
Auxiliary System ControlElectric Oil Pump Control Variable Voltage Control of Low Voltage DC/DC A/C & Heater Control Brake Boost Control Cluster Display

Brake Switch

  1. Type: ON/OFF Switch
  2. Specification
ItemBrake Pedal ReleaseBrake Pedal Push
Switch 1Max. 0.5VBattery Voltage
Switch 2IG OFFMax. 50mV
IG ONBattery VoltageMax. 0.5V
ItemsSpecification
Gap [mm (in)]1.0 ~ 2.0 (0.039 ~ 0.079)

Clutch Pressure Sensor (CPS)

  1. Type: Piezo-Resistive Pressure Sensor
  2. Specification (Vref = 5.0V)
Pressure [MPa (kgf/cm 2 , psi)]Output Voltage (V)
0 (0, 0)0.5
0.2 (2.04, 29.0)0.9
0.4 (4.08, 58.0)1.3
0.6 (6.12, 87.0)1.7
0.8 (8.16, 116.0)2.1
1.0 (10.20, 145.0)2.5
1.2 (12.24, 174.1)2.9
1.4 (14.28, 203.1)3.3
1.6 (16.32, 232.1)3.7
1.8 (18.35, 261.1)4.1
2.0 (20.39, 290.1)4.5

Scheme 165

Scheme 165
Scheme 165

DC Fuse

  1. Specification
ItemSpecification
Rated Current (A)30

Scheme 166

Scheme 166: Component Location
Scheme 166: Component Location

Note. HPCU includes the HCU (Hybrid Control Unit), Inverters (for Drive Motor, HSG and Electric A/C Compressor), MCU (Motor Control Unit) and LDC (Low DC / DC Converter).

Note. For the location of the other control modules, refer to the relevant group.

Scheme 167

Scheme 167
Scheme 167

Connector [E67]

Pin No.DescriptionConnected to
1
2
3
4
5
6Brake Switch 1 signal inputBrake Switch (N.O)
7
8
9Sensor power (+5V)Clutch Pressure Sensor (CPS)
10
11Chassis CAN [High] signal inputOther control modules
12Chassis CAN [Low] signal inputOther control modules
13
14Brake Switch 2 signal inputBrake Switch (N.C)
15
16
17Clutch Pressure Sensor (CPS) signal inputClutch Pressure Sensor (CPS)
18
19Hybrid CAN [High] signal inputOther control modules
20Hybrid CAN [Low] signal inputOther control modules
21
22
23
24
25Sensor groundClutch Pressure Sensor (CPS)
26
27
28
29
30Battery power (B+)Ignition Switch (ST)
31
32
33Battery power (B+)Ignition Switch (IG1)
34Battery power (B+)Battery
35Battery power (B+)Battery
36
37
38HCU groundChassis ground
39HCU groundChassis ground
40HCU groundChassis ground
Pin no.DescriptionConditionTypeLevel
1
2
3
4
5
6Brake Switch 1 signal inputReleaseDCMax. 0.5V
PushBattery Voltage
7
8
9Sensor power (+5V)IG OFFDCMax. 0.5V
IG ON4.5 ~ 5.5V
10
11Chassis CAN [High] signal inputRecessivePulse2.0 ~ 3.0 V
Dominant2.75~4.5 V
12Chassis CAN [Low] signal inputRecessivePulse2.0 ~ 3.0 V
Dominant0.5~2.25 V
13
14Brake Switch 2 signal inputIG OFFDCMax. 50mV
IG ON (Release)Battery Voltage
IG ON (Push)Max. 0.5V
15
16
17Clutch Pressure Sensor (CPS) signal inputIG OFFDCMax. 50mV
IG ON0 ~ 5.0 V
HYBRID READY0.5~4.5 V
18
19Hybrid CAN [High] signal inputRecessivePulse2.0 ~ 3.0 V
Dominant2.75~4.5 V
20Hybrid CAN [Low] signal inputRecessivePulse2.0 ~ 3.0 V
Dominant0.5~2.25 V
21
22
23
24
25Sensor groundIG OFFDCMax. 50mV
IG ON
26
27
28
29
30Battery power (B+)IG OFFDCMax. 0.5V
IG ON
IG STBattery Voltage
31
32
33Battery power (B+)IG OFFDCMax. 0.5V
IG ONBattery Voltage
34Battery power (B+)IG OFFDCBattery Voltage
IG ON
35Battery power (B+)IG OFFDCBattery Voltage
IG ON
36
37
38HCU groundIG OFFDCMax. 50mV
IG ON
39HCU groundIG OFFDCMax. 50mV
IG ON
40HCU groundIG OFFDCMax. 50mV
IG ON

Scheme 168

Scheme 168: Circuit Diagram
Scheme 168: Circuit Diagram

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