PE System (Power Electric System) is a driving device for

electric vehicle An electric vehicle (EV) is a vehicle that uses one or more electric motors for propulsion. It can be powered by a collector system, with electricity from extravehicular sources, or it can be powered autonomously by a battery (sometimes cha ...

Hyundai Hyundai is a South Korean industrial conglomerate ("chaebol"), which was restructured into the following groups: * Hyundai Group, parts of the former conglomerate which have not been divested ** Hyundai Mobis, Korean car parts company ** Hyundai ...

Genesis Genesis may refer to: Bible * Book of Genesis, the first book of the biblical scriptures of both Judaism and Christianity, describing the creation of the Earth and of mankind * Genesis creation narrative, the first several chapters of the Book of ...

, and

Kia Kia Corporation, commonly known as Kia (, ; formerly known as Kyungsung Precision Industry and Kia Motors Corporation), is a South Korean multinational automobile manufacturer headquartered in Seoul, South Korea. It is South Korea's second lar ...

are using this device in some of their models.

Details

The PE System serves as an

engine An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power gen ...

and a

transmission Transmission may refer to: Medicine, science and technology * Power transmission ** Electric power transmission ** Propulsion transmission, technology allowing controlled application of power *** Automatic transmission *** Manual transmission *** ...

for an

internal combustion engine An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal combus ...

in an electric vehicle. The first generation PE system consists of the motor and inverter separated and connected with an orange three-phase cable. The second-generation PE system consists of an integral motor and inverter, and cables and connectors have disappeared. The third-generation PE System consists of a
integral motor

inverter A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opp ...

, and reducer. The third-generation PE system was applied to Hyundai Motor Group's E-GMP platform. Four-wheel drive is applied by placing motors on the front and rear wheels. The integration of the motor-inverter housing lowered the inverter height by about 30 mm. The PE System has also been installed into the Vision FK, an eco-friendly hydrogen electric vehicle. In this vehicle, the PE System has been combined with a hydrogen fuel cell system. A standardized battery system can be tuned and implemented as part of the system appropriate for a specific vehicle segment. This system is said to maximize driving range or meet the needs of a customer.

Hyundai

Hyundai's PE System consists of 3 Principles; Motor, EV Transmission, and Inverter. These components are integrated into one single compact module.

Motor

The motor is controlled by the inverter power module.

Electrical energy Electrical energy is energy related to forces on electrically charged particles and the movement of electrically charged particles (often electrons in wires, but not always). This energy is supplied by the combination of electric current and electr ...

in the battery converts into

mechanical energy In Outline of physical science, physical sciences, mechanical energy is the sum of potential energy and kinetic energy. The principle of conservation of mechanical energy states that if an isolated system is subject only to conservative forces, t ...

which the motor then uses to produce power for the vehicle to run. When the accelerator is applied on, the battery of the car supplies electrical energy to the

stator The stator is the stationary part of a rotary system, found in electric generators, electric motors, sirens, mud motors or biological rotors. Energy flows through a stator to or from the rotating component of the system. In an electric mot ...

, where the rotors then start to turn and subsequently provide mechanical energy to the car's gears, thus powering the wheels. It is also used as a generator during reduction per regenerative braking system.

EV Transmission

The Transmission adjusts the number of revolutions by the motor. This results the attainment of higher torque of the electric vehicle. With this is the EV Transmission Disconnector. The Disconnector allows for the motor and drive axle to be disconnected, which enables free shifting between 2WD (2 wheel drive) and 4WD (4 wheel drive). This is only available for the all-wheel drive system.

Inverter

Powering the electric motor, DC-power in the battery is converted to the AC-power used for torque control in the motor. The inverter

power module A power module or power electronic module provides the physical containment for several power components, usually power semiconductor devices. These power semiconductors (so-called dies) are typically soldered or sintered on a power electronic ...

comes with Silicon Carbide (SiC)

semiconductor A semiconductor is a material which has an electrical resistivity and conductivity, electrical conductivity value falling between that of a electrical conductor, conductor, such as copper, and an insulator (electricity), insulator, such as glas ...

s. These are proven to be more efficient than existing semiconductors that are only made with Silicon, as one but not limited to the increase of thermal management, where the

thermal conductivity The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly denoted by k, \lambda, or \kappa. Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal ...

of silicon carbide is 1490W/m-K (Watts per meter-Kelvin), compared to the 150W/m-K offered by Silicon.

Vehicles using the PE system

Hyundai Hyundai is a South Korean industrial conglomerate ("chaebol"), which was restructured into the following groups: * Hyundai Group, parts of the former conglomerate which have not been divested Hyundai Mobis, Korean car parts company Hyundai ...

Hyundai Ioniq 5 The Hyundai Ioniq 5 ( ko, 현대 아이오닉 5) is a battery electric compact crossover SUV produced by Hyundai. It is the first product to be marketed under the electric cars-focused Ioniq sub-brand, and the first model developed on the Hyu ...

Hyundai Ioniq 6 The Hyundai Ioniq 6 ( ko, 현대 아이오닉 6) is a battery electric mid-size fastback sedan produced by Hyundai Motor Company. It is the second vehicle marketed under the electric car-focused Ioniq sub-brand, and the fourth model develope ...

Hyundai Ioniq 7 Ioniq (stylized as IONIQ) is an automotive marque and a division of Hyundai Motor Company with headquarters in Seoul, South Korea. The marque was established in 2020 as a sub-brand for Hyundai's electric vehicle line-up. The sub-brand is sla ...

* Hyundai Vision FK *

Hyundai N Vision 74 The Hyundai N Vision 74 is a concept car developed by Hyundai. The sporty car was unveiled at N Day 2022, an event organized by the Hyundai N performance division in mid-July 2022 at Busan, South Korea, alongside the Hyundai RN22e concept based o ...

Genesis Genesis may refer to: Bible * Book of Genesis, the first book of the biblical scriptures of both Judaism and Christianity, describing the creation of the Earth and of mankind * Genesis creation narrative, the first several chapters of the Book of ...

Genesis GV60 The Genesis GV60 is a battery electric compact luxury crossover SUV produced by Genesis, a luxury vehicle marque of Hyundai. Slotted below the GV70, it is the first Genesis product to be developed on the Hyundai Electric Global Modular Platfo ...

Kia Kia Corporation, commonly known as Kia (, ; formerly known as Kyungsung Precision Industry and Kia Motors Corporation), is a South Korean multinational automobile manufacturer headquartered in Seoul, South Korea. It is South Korea's second lar ...

Kia EV6 The Kia EV6 is a battery electric compact crossover SUV produced by Kia. Introduced in March 2021, it is the first Kia dedicated electric vehicle, and the first model developed on the Electric Global Modular Platform (E-GMP) similar to the Hyun ...

* Kia EV4 * Kia EV9

References

{{Reflist Technology Electric vehicles