i-ELOOP DECELERATION ENERGY REGENERATION
id131700700000
Purpose of Adoption
• For improved fuel economy, electrical power is generated instantly using kinetic energy during deceleration and retrieved as electrical energy, which decreases the amount of fuel used for supplying power (approx. 10%).
Service Point
• The electrical system has differing power supply voltages. In particular, for removal/installation/replacement of 13 V to 25 V system parts (capacitor, DCDC converter, generator), always remove the negative battery cable and capacitor safety plug.
• After replacing the capacitor and connecting the battery, the system goes into pre-charge mode because charging of the capacitor is required. The display during pre-charge mode is as follows depending on the instrument cluster type and audio system grade.
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― i-ELOOP warning in the instrument cluster illuminates
― “i-ELOOP charging” is indicated in the multi-display of the instrument cluster
― “i-ELOOP energy Pre-charging” is indicated in the warning guidance screen pop-up menu of the center display.
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Note
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• However, if there is no equipment because of the instrument cluster type and audio system grade, the above messages are not displayed.
• If the integrity of the capacitor cannot be determined using the tester or i-ELOOP system, determine it by visual inspection (damage to capacitor body, capacitor connector damage, corrosion).
• Store the capacitor in an upright position. However, the capacitor may be tilted for short periods during assembly.
• If the capacitor is dropped and damage or deformation is visible, replace it with a new one (no damage or deformation visible)
• The service part is delivered with a short wire installed to prevent static charge. Remove the wire before installing the part to the vehicle.
• For vehicles with a capacitor and having the following sticker adhered to the top of the bumper (actually the sticker is hidden by hood so it is not visible when hood is closed) perform electrical discharging of the capacitor before disposal using the discharge resistance box. After discharging, dispose of the capacitor the same as other parts.
Common Inquiry
• The “i-ELOOP” lamp illuminates in the instrument cluster while the capacitor is being charged by i-ELOOP.
• If the vehicle remains un-driven for long periods and the capacitor voltage is reduced, the system enters pre-charge mode. This mode is for producing a power supply (capacitor is charged) when there is an insufficient power supply to the vehicle. Therefore, while pre-charging is being performed, it is recommended that the vehicle not be driven until the indication is no longer displayed (maximum 30 seconds).
• Under the following conditions, “i-ELOOP” does not illuminate in the instrument cluster because there is no power generated using deceleration energy regeneration.
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― The vehicle’s electrical load (power consumption) is 50A or more
― Ambient temperature is less than 0 °C
― Battery charge condition is less than 65%
Other
• For vehicles with the center display, indication of the deceleration energy regeneration is also possible as shown below.To display, select Application-->Fuel Economy Monitor-->Control Status from the home screen of the center display.
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1. Displays the level of electricity generated by regenerative braking.
2. Displays the amount of the electricity stored in the capacitor.
