cybersecurity

Статті, гайди й товари, позначені тегом «cybersecurity» — об'єднаний перелік усіх матеріалів каталогу за цією темою.

Гайд користувача

Інженерія кібербезпеки електросамоката: ETSI EN 303 645 V3.2.0:2024-12 baseline (13 provisions для consumer IoT — no default password, vulnerability disclosure RFC 9116, secure update, secure storage, secure communication), ISO/SAE 21434:2021 road-vehicle cybersecurity engineering (TARA threat analysis + risk assessment), ISO/SAE 24089:2023 software update engineering, UNECE R155 CSMS (Cybersecurity Management System) обов'язковий для type-approval нових типів з 07-2022, UNECE R156 SUMS (Software Update Management System), EU Cyber Resilience Act 2024/2847 (Regulation 2024-10-23, applicability 2027-12-11 + reporting obligations 2026-09-11), NIST SP 800-193:2018 Platform Firmware Resilience Guidelines (Protection-Detection-Recovery RoT), NIST SP 800-183 IoT Networks of Things, IEC 62443-4-1/-4-2 secure product development lifecycle, Bluetooth Core 5.4 LE Secure Connections з ECDH P-256 (заміна Just Works як baseline), IEEE 802.11i WPA3-Personal SAE Dragonfly key exchange, RFC 9116 security.txt responsible-disclosure, attack surface (BLE pairing Just Works/Numeric Comparison/Passkey Entry/OOB, Bluetooth protocol attacks KNOB CVE-2019-9506 + BIAS CVE-2020-10135 + BLURtooth CVE-2020-15802 + BLESA CVE-2020-9770, firmware via JTAG/SWD/USB DFU, motor controller CAN bus, mobile app↔cloud TLS, OTA update channel signing, GPS spoofing, smart-battery BMS handshake, hardware UART debug eFuse), mitigation (LE Secure Connections ECDH P-256 + mutual TLS certificate pinning + secure boot signed bootloader + signed firmware AES-256 + anti-rollback monotonic counter + HSM/secure element ATECC608B/NXP A1006/SE050 + SBOM SPDX CycloneDX + RFC 9116 security.txt + Coordinated Vulnerability Disclosure ISO/IEC 29147:2018 + penetration testing ISTQB), incidents (Xiaomi M365 BLE anti-lock bypass 2019 Zimperium Rani Idan, Lime BLE replay attack 2019, Bird/Lime API IDOR 2020, Ninebot ES1/ES2/ES4 BLE pwd 888888 vulnerability, Tier/Voi unauthorized unlock 2022, hoverboard CVE catalogue 2018)

Інженерний deep-dive у кібербезпеку електросамоката як четверта cross-cutting infrastructure axis — паралельна до [інженерії різьбових з'єднань як joining-axis](@/guide/fastener-and-bolted-joint-engineering.md), [термоменеджменту як heat-dissipation axis](@/guide/thermal-management-engineering.md) і [EMC/EMI як interference-mitigation axis](@/guide/emc-emi-engineering.md). Покриває: 10-row standards matrix (ETSI EN 303 645 V3.2.0:2024-12 consumer IoT baseline, ISO/SAE 21434:2021 road-vehicle TARA, ISO/SAE 24089:2023 SW update engineering, UNECE R155 CSMS, UNECE R156 SUMS, EU CRA 2024/2847, NIST SP 800-193 firmware RoT, IEC 62443-4-1 secure SDLC, Bluetooth Core 5.4 LE Secure Connections, IEEE 802.11i WPA3-SAE); 7-row attack-surface matrix (BLE pairing методи + KNOB/BIAS/BLURtooth/BLESA + firmware JTAG/SWD/DFU + mobile↔cloud TLS + OTA signing + GPS spoofing + smart-battery handshake); 6-row mitigation matrix (LE Secure Connections + mutual TLS + secure boot + signed firmware + anti-rollback + HSM/SE); 6-row real-incident matrix (Xiaomi M365 2019 + Lime BLE 2019 + Bird IDOR 2020 + Ninebot pwd 888888 + Tier/Voi 2022 + hoverboard catalogue); 8-step DIY security check; 6-step DIY remediation; EU Cyber Resilience Act timeline (2024-12-10 entry into force, 2026-09-11 reporting obligations, 2027-12-11 full applicability); 16 нумерованих розділів.

17 хв читання

Гайд користувача

Інженерія мотора й контролера електросамоката: BLDC електромагнетизм, FOC, KV constant, MOSFET inverter і стандарти IEC/UL/ISO/ECE

Інженерний deep-dive у силовий блок електросамоката — паралельний до introductory оглядів «Мотори: редукторний vs прямопривідний хаб» і «Контролер, BMS, дисплей, IoT»: електромагнітна фізика BLDC (Lorentz force F=BIL, Faraday EMF ε=-dΦ/dt, Lenz law), KV constant у RPM/V як характеристика обмотки, torque constant Kt=60/(2π·KV) — чому KV 10 на 48 V дає теоретичні 480 RPM/V × 0,95 = 22 N·м/A через дзеркальну симетрію; топологія stator/rotor (12-slot 14-pole inrunner vs hub-mount outrunner, NdFeB N42/N48/N52 remanence Br 1,28–1,44 Тл, ferrite Y30 Br 0,4 Тл, samarium-cobalt SmCo для високих температур); три типи втрат — copper I²R (`P_cu = 3·I²·R_phase`), iron/hysteresis за Steinmetz (`P_h = k_h · f · B^n`, n≈1,6–2,2), eddy currents (`P_e = k_e · f² · B² · t²`); ККД 85–92 % і чому пік efficiency завжди при ~50–75 % rated load; thermal management — IEC 60085 insulation class B (130 °C), F (155 °C), H (180 °C), IEC 60529 IP54/65/67 sealing для hub-mounted моторів; FOC (Field-Oriented Control) — Clarke transform abc→αβ, Park transform αβ→dq з rotor angle θ, PI controllers для i_d=0 + i_q як torque command, SVPWM (space-vector PWM) modulation; MOSFET inverter — six-MOSFET three-phase bridge, IRFB3077/IPB019N08N3 із RDS(on) 1–5 мОм, switching losses `0,5·V·I·(t_r+t_f)·f_sw` при 16–32 kHz, dead time 200–500 ns, gate driver 10–15 А peak; DC-link capacitor — ripple current 10–30 А, low-ESR aluminum-electrolytic 1000–2200 мкФ або polypropylene film; regenerative braking physics — motor як generator, inverter як rectifier, BMS-limited charge acceptance; engineering ↔ симптоми diagnostic matrix; повна матриця 9 стандартів — IEC 60034-1:2022 rotating electrical machines, IEC 60034-30-1 efficiency classes IE1-IE5, UL 1004-1 motors general, UL 1310 Class 2 power units, ISO 21434:2021 road vehicles cybersecurity, IEC 61508 functional safety SIL 1-4, ECE R10 rev 6 EMC + CISPR 14-1, FMVSS 305 high-voltage powertrain, UN ECE R136 L-category propulsion.

18 хв читання