# Physical Groups

## Overview

These blocks are used for Physical operation of a given input.

IC Engine

Longitudinal Vehicle

### IC Engine

This block is used to simulate an internal combustion engine based on configurations.

Name

Description

Stall Speed

Engine Speed at Stall speed in RPM

Torque at Stall Speed

Engine Torque at Stall speed in Nm

Power at Stall Speed

Power delivery at Stall speed in kW

Maximum Torque

Maximum Engine Torque deliverable in Nm

Speed at Maximum Torque

Engine Speed at maximum Torque in RPM

Specific Fuel Consumption

Fuel consumption per power output in kg/kWh

Fuel Density

Fuel density in kg/m3

Power to rpm coefficient 1

Coefficient of A

Power to rpm coefficient 2

Coefficient of B

Power to rpm coefficient 3

Coefficient of C

RPM to torque coefficient 1

Coefficient of A

RPM to torque coefficient 2

Coefficient of B

RPM to torque coefficient 3

Coefficient of C

Name

Description

Thr – Throttle

Level of fuel allowed from a scale of 0 to 1

PReq – Power Required

Additional power required by Vehicle

TrqReq – Torque Required

Additional torque required by Vehicle

Fuel – Fuel Output

Fuel consumption rate in g/s

PwrO – Power Output

Power output in W

ESpd – Engine Speed Output

Rotational speed in RPM

TrqO – Torque Output

Engine output

### Longitudinal Vehicle

This block is used to simulate a car based on the given configurations.

Name

Description

Wheel Diameter

Wheel diameter in mm

Axial Gear Ration

Factor of axial gears

Vehicle Frontal Area

Area of vehicle in m2

Vehicle Mass

Mass of the vehicle in kg

Name

Description

Gear – Vehicle Gear

From Gear Selector

RdAng – Road Angle

Elevation of the road in radians

PwrO – Power Output

From Engine

EngSpd – Engine Speed

From Engine

Trq – Torque

From Engine

VehSpd – Vehicle Speed

Vehicle Speed in m/s

PwrRq – Power Required

To Engine

TrqRq – Torque Required

To Engine