lemonergy· battery engineering courses

Lemonergy · Protocol step

Pulse train

Alternate charge or discharge pulses with rests.

Implementation ID
pulse
Reviewed
2026-10-27

Behavior

direction selects charge or discharge. The finite train uses positive current and pulse duration, positive rest duration, and an integer count from 1 to 1000. Durations must align with protocol dtS.

Interface

Pulse train interfaceInputs or arguments on the left, observed outputs on the right. Conserving terminals appear below the component. The tables give units and behavior.Pulse trainProtocol step
Original Lemonergy interface view. Lines identify ports; they are not a completed simulation circuit.

This reference describes a protocol step; its configuration fields are listed below. It has no connected Studio ports.

Parameters

Defaults are initial model values. Select values for your own model and operating conditions.

Configuration fields
ParameterUnitDefaultMeaning and limits
direction
direction		charge or dischargeSupplied by the userPulse direction.
a
a		ASupplied by the userPositive pulse-current magnitude.
pulseS
pulseS		sSupplied by the userPositive pulse duration.
restS
restS		sSupplied by the userPositive rest duration.
count
count		countSupplied by the userInteger 1 to 1000.

Equations and rules

This step is defined by its sequence and stopping conditions, described above.

Worked example

Build pulse and rest

10 A for 10 s adds 100 C, about 0.0278 Ah, before efficiency adjustment.

Open Design → Protocol bench →

Use in a workflow

Inspect pulse characterization

HPPC alternates pulses, moves SOC and includes long rests.

  1. Pulse: Excites charge/discharge
    • a
    • pulseS / restS
Open Design → Protocol bench

Build pulse and rest

The bench programs direction, current, timing and repetitions.

  1. Pulse: Applies repeated pulses
    • direction
    • a
    • pulseS / restS
    • count
Open Design → Protocol bench

Connected concepts

Limits and interpretation

  • Pulse programming does not establish faster, safer or longer-life charging. An existing pack and product access are required.
  • The estimate depends on timing, temperature and state; this is not AC impedance spectroscopy.
  • Protocol dtS is 1e-6 to 60 s. CC and CP segments cannot share one protocol; CCCV charge must stand alone. Protocol samples use discharge-positive iPack.

Implementation sources

This reference follows Lemonergy implementation sources. Scientific articles support the linked concepts separately.

Repository: battery-design · Revision: ef9802329b75bc15bb96885f8ed5d49425106696

  • js/test-protocol.js

This implementation and its workflow uses (JSON) · Knowledge graph (JSON-LD)