Electric Vehicles (EV) are being introduced by a number of manufacturers.
Charging stations are starting to appear in shopping centres and they are gradually becoming more popular.
There are enormous differences between EVs and conventional vehicles and the technician
needs specialised equipment to be able to work on them.
Electric Vehicles (EVs) have extremely high DC voltages, which are dangerous and therefore test
equipment must be able to protect the technician. Pico have introduced a new EV kit. The kit has
components and accessories that are designed for high voltages.
Please Note that working on EVs can be dangerous and life-threatening.
Do not attempt to repair or modify any EV unless you have been trained
appropriately and you have taken all safety precautions.
The new EV kit covers a variety of systems and all vehicle technologies. Please note that the
EV kit can also be used for conventional (petrol and diesel) vehicles. The kit is available in
a case PICO-PQ196, in foam PICO-PQ236 or in both PICO-PQ284.
Watch - EV Kit Introduction
A number of guided tests are available and more are being planned.
WARNING The information on these test pages is illustrative. It is not to be used for
training purposes or as guidance or instruction. It is also incomplete. A full version
of the contents can be found in our PicoScope 7 Automotive software.
- GT919 VAG EV system active discharge and shutdown
- GT921 HVAC compressor current and system temperature
- GT923 Mild hybrid cranking voltage (12, 24 and 48 V) and current
- GT924 PTC heater operation and command signal
- More to follow...
Please Note that working on EVs can be dangerous and life threatening. Do not attempt to repair or modify any
EV unless you have been trained appropriately and you have taken all safety precautions.
Browse the EV Guided Tests and Videos
- Download either the Early Access Version or the Stable Version, free PicoScope 7 Software
- Install the software and start it running.
- If you don't own an Automotive PicoScope, you can choose the limited functionallity "demo device".
- Click on Electric Vehicles in the Guided Tests window.
- Read and accept the warning
- Select a test and click on the Guide and Setting Button to display the guided test instructions and load the sample waveforms for you to analyse.
- Many of the tests have a supporting guided test video link.
- Click the Home button to return to the Guided Tests Menu and select another test.
The kit has a comprehensive range of accessories suitable for EV diagnostics in
addition to the standard set of leads, clips and probes found in most PicoScope kits.
Two Pole Tester
First Step! The Two-Pole Tester is essential for safety
and is used to ensure that the vehicle has shutdown
correctly and there are no dangerous voltages present. It is not connected to the PicoScope and is used before
you use your PicoScope to capture data. Its leads have retractable insulators to try to prevent accidental
contact. It also has a built-in torch and a battery level indicator.
4425A Automotive PicoScope
The 4425A is the new 4-channel PicoBNC+ enabled automotive oscilloscope with outstanding
specifications and reliability. It is suitable for both conventional internal combustion engine
vehicles and electric vehicles. A standard USB3 Cable and a long USB2 lead are supplied.
Four PicoBNC+ 1:1 Premium Test Leads: Blue, Red, Green and
Yellow are supplied. More information
on the scope can be found on the 4425A page.
Three 2000A Current Clamps and one 60A Current Clamp
All of these current clamps are PicoBNC+ and configure themselves when plugged into the scope.
The three high amp clamps can measure up to 2kA and the main reason that three are supplied is
to allow simultaneous measurement of current supplied to three phase motors. There is also a low current,
60A clamp in the kit. More information on these clamps is on the PicoBNC+ Current Clamp page.
include: 3 phase testing; motor winding current phasing; current split between low and high voltage batteries
during charging and regenration current (DC) against accelerator / brake pedal position.
High Voltage Backpinning Probes
As mentioned above, working with EVs can be dangerous and special equipment is required.
The kit has three red and three black special high voltage (1000V) backpinning probes to protect
you from the high voltages.
High Voltage Differential Probe (1400V Version)
The High Voltage Differential Probe can be used for: Charger to Vehicle proximity line voltage;
Type 1 and Type 2 Electric Vehicle Supply Equipment (EVSE) communication circuits; and Volkswagen
Audi Group (VAG) EV system active discharge and shut down (guided tests coming soon).
Insulation and High Voltage Meter with USB Dongle
The High Voltage Tester is an insulation tester and multimeter that can be used with high voltages.
The dongle will allow the data captured by the meter to be coupled to the PC PicoScope Software,
with time and date stamps. Please note that this feature will be added to future software versions
and is not ready yet. The High Voltage Tester is supplied with extra test leads.
Coil on Plug (COP), Resistance and Temperature Probes
The PicoBNC+ COP probe is extremely useful for testing COP ignition (e.g. in hybrids) but it can
also be used to detect the current in a coil allowing you to sense current in actuators and
solenoids without having to connect. Detect charging current by detecting the magnetic field around the cable.
A PicoBNC+ resistance and a temperature probe are also supplied
The leads allow you to unplug a fuse, plug in the lead in its place and insert the fuse into the lead.
This gives you access to measure current through the fuse and to measure voltage (a new feature).
The 10:1 Attenuating Leads reduce the incomming voltage by a factor of 10
which allows high voltage testing (e.g. Primary Ignition).
It is important to note that Standard 1:1 test leads are not capable of measuring high frequencies
and are not suitable for high speed data systems such as CAN, CAN-FD, Flexray, etc. The 10:1 probes
present a high impedance to the circuit being tested (important for Flexray) and are able to measure
Parking and Key Entry Sensors
Ultrasonic Parking (40kHz) and Keyless Entry (125 - 140kHz) Sensors
are provided to test those systems.