User Tools

Site Tools

You are here: Home » Student Documentation » Joulemeter (JM2)
student_documentation:jm2

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision		Previous revision
student_documentation:jm2 [2021/02/11 17:39] – external edit 127.0.0.1student_documentation:jm2 [2024/08/07 06:43] (current) – [H2] Melle de Wit
Line 6: Line 6:
 ==== Description ==== ==== Description ====
  
-The joulemeters used in the Shell Eco-marathon (Shell Eco-marathon) are custom built for Shell and are not available for purchase. The joulemeter (JM) measures voltage across the + and – bus bars and current through one of the bus bars. The JM calculates joules from measure of voltage, current, and time.+The joulemeters used in Shell Eco-marathon are custom built for Shell and are not available for purchase. The joulemeter (JM) measures voltage across the + and – bus bars and current through one of the bus bars. The JM calculates joules from measure of voltage, current, and time.
 The JM will be used in all Shell Eco-marathon energy classes to measure electrical energy flow. The JM includes a LCD display showing a number of measured values. The JM will be used in all Shell Eco-marathon energy classes to measure electrical energy flow. The JM includes a LCD display showing a number of measured values.
 Firmware in the JM measures the following; Firmware in the JM measures the following;
Line 36: Line 36:
  
 ==== Installation before event ==== ==== Installation before event ====
-NON Battery Electric Prototype vehicles are not currently required to install a joulemeter. +Joulemeter location in vehicle and other considerations (Chapter 1 - Article 56)
- +
-Joulemeter location in vehicle and other considerations+
  
   * Prior to arrival at the event, teams should identify a location to accommodate the Joulemeter near to the battery.   * Prior to arrival at the event, teams should identify a location to accommodate the Joulemeter near to the battery.
Line 52: Line 50:
   - Where equipped, connect the USB cable to the Joulemeter and the On-Board Computer (OBC) USB. You MUST NOT use your own USB cables. Use the cable provided, it electrically separates the JM from the On-Board Computer.   - Where equipped, connect the USB cable to the Joulemeter and the On-Board Computer (OBC) USB. You MUST NOT use your own USB cables. Use the cable provided, it electrically separates the JM from the On-Board Computer.
  
-==== ICE ==== +==== Internal Combustion Engine ==== 
-The Joulemeter should be installed between the vehicle’s starter battery and the vehicle’s electrical system. As shown in the figure below, both the positive and negative battery leads pass through the Joulemeter.+The Joulemeter should be installed between the vehicle’s accessory battery and the vehicle’s electrical system. As shown in the figure below, both the positive and negative battery leads pass through the Joulemeter.
  
-{{ :student_documentation:icejoulemeter.png?nolink&400 |}}\\+{{ :student_documentation:icejoulemeter.png?nolink&300 |}}\\
 Joulemeter electrical installation (ICE) Joulemeter electrical installation (ICE)
  
  
-==== BE === +==== Battery Electric === 
-For urban concept vehicles the joulemeter should be installed between the battery and the motor controller.  As shown below, both the positive and negative battery leads pass through the Joulemeter.+The joulemeter should be installed between the propulsion battery and the vehicle electrical system. As shown below, both the positive and negative battery leads pass through the Joulemeter.
  
 {{ :student_documentation:be_joulemeter.jpg?nolink&400 |}} {{ :student_documentation:be_joulemeter.jpg?nolink&400 |}}
  
  
-For prototype vehicles the joulemeter should be installed between the vehicle’s electrical system and the propulsion motor controller.  As shown below, both the positive and negative battery leads pass through the Joulemeter. +==== Hydrogen Fuel Cell ==== 
- +The Joulemeter should be installed between the accessory battery and the vehicle’s electrical system. As shown below, both the positive and negative battery leads pass through the Joulemeter.
-{{ :student_documentation:be_joulemeter2.jpg?nolink&400 |}} +
- +
- +
-==== H2 ==== +
-The Joulemeter should be installed between the battery and the vehicle’s electrical system.  As shown below, both the positive and negative battery leads pass through the Joulemeter.+
  
  
Line 82: Line 75:
  
  
-==== Trouble Shooting ==== 
-The table below provides a number of troubleshooting options for cases where anomalies are detected. 
- 
-Please check the contents of this section before seeking assistance. 
- 
-^Condition^ Possible Causes^ Solutions^ 
-|The LEDs remain dark when I press the Start Button on the On-Board Computer|OBC battery is not correctly connected to the Backbone \\ OBC battery is discharged|Verify battery cable is connected to the Backbone \\ Charge battery| 
-|:::|Pod not correctly connected to the Backbone|Check cable and plug| 
  
Log In (for D&T Team and Volunteers ONLY) student_documentation/jm2.1613065145.txt.gz · Last modified: 2021/02/11 17:39 by 127.0.0.1

Page Tools